UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

 Washington, D.C. 20549

 FORM 10-K

 (Mark One)

 x ANNUAL REPORT PURSUANT TO SECTION
13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934

 For the fiscal year ended December 31, 2023

or

 o TRANSITION
REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934

 For the transition period from _____ to _____

Commission file number of the issuing entity: 333-257991-05

 Central Index Key Number of the issuing entity:
0001937096

 BANK 2022-BNK43

 (exact name of the issuing entity as specified in its
charter)

 Central Index Key Number of the depositor: 0000850779

 Wells Fargo Commercial Mortgage
Securities, Inc.

 (exact name of the depositor as specified in its
charter)

 Central Index Key Number of the sponsor: 0000740906

 Wells Fargo Bank, National
Association

 (exact name of the sponsor as specified in its charter)

 Central Index Key Number of the sponsor: 0001541557

 Morgan Stanley Mortgage Capital
Holdings LLC

 (exact name of the sponsor as specified in its charter)

 Central Index Key Number of the sponsor: 0001102113

 Bank of America, National
Association

 (exact name of the sponsor as specified in its charter)

 Central Index Key Number of the sponsor: 0001577313

 National Cooperative Bank, N.A.

 (exact name of the sponsor as specified in its charter)

 New York

 (State or other jurisdiction of

 incorporation or organization of

 the issuing entity)

 38-4224652

 38-4224653

 38-7290351

 (I.R.S. Employer

 Identification Numbers)

c/o Computershare Trust Company, National Association

 as Certificate Administrator

 9062 Old Annapolis Road

 Columbia, MD

 (Address of principal
executive offices of the issuing entity)

 21045

 (Zip Code)

 Registrant's telephone number,
including area code:

 (704) 374-6161

 Securities registered pursuant to Section 12(b) of the Act:

 Title of each class

 Trading Symbol(s)

 Name of each exchange on which registered

 None

 Securities registered pursuant to Section 12(g) of the
Act: None.

 Indicate by check mark if the registrant is a well-known
seasoned issuer, as defined in Rule 405 of the Securities Act. o Yes
No

 Indicate by check mark if the registrant is not required to
file reports pursuant to Section 13 or Section 15(d) of the Act. o Yes
No

 Indicate by check mark whether the registrant (1) has filed
all reports required to be filed by Section 13 or 15(d) of the Securities
Exchange Act of 1934 during the preceding 12 months (or for such shorter period
that the registrant was required to file such reports), and (2) has been
subject to such filing requirements for the past 90 days. Yes o No

 Indicate by check mark whether the registrant has submitted
electronically every Interactive Data File required to be submitted pursuant to
Rule 405 of Regulation S-T (Section 232.405 of this chapter) during the
preceding 12 months (or for such shorter period that the registrant was
required to submit such files).

 Indicate by check mark whether the registrant is a large
accelerated filer, an accelerated filer, a non-accelerated filer, a smaller
reporting company, or an emerging growth company. See the definitions of "large
accelerated filer," "accelerated filer," "smaller reporting company," and
"emerging growth company" in Rule 12b-2 of the Exchange Act.

 Large accelerated
filer o
Accelerated filer
o

 Non-accelerated
filer
Smaller reporting
company
o

Emerging growth
company
o

 If an emerging growth company, indicate by check mark if the
registrant has elected not to use the extended transition period for complying
with any new or revised financial accounting standards provided pursuant to
Section 13(a) of the Exchange Act. o

 Indicate by check mark whether the registrant has filed a
report on and attestation to its management's assessment of the effectiveness
of its internal control over financial reporting under Section 404(b) of the
Sarbanes-Oxley Act (15 U.S.C. 7262(b)) by the registered public accounting firm
that prepared or issued its audit report. o

 If securities are registered pursuant to Section 12(b) of the
Act, indicate by check mark whether the financial statements of the registrant
included in the filing reflect the correction of an error to previously issued
financial statements. o

 Indicate by check mark whether any of those error corrections
are restatements that required a recovery analysis of incentive-based
compensation received by any of the registrant's executive officers during the
relevant recovery period pursuant to §240.10D-1(b). o

 Indicate by check mark whether the registrant is a shell
company (as defined in Rule 12b-2 of the Act). o Yes No

 State the aggregate market value of the voting and non-voting
common equity held by non-affiliates computed by reference to the price at
which the common equity was last sold, or the average bid and asked price of
such common equity, as of the last business day of the registrant's most
recently completed second fiscal quarter.

 Indicate by check mark whether the registrant has filed all
documents and reports required to be filed by Section 12, 13 or 15(d) of the
Securities Exchange Act of 1934 subsequent to the distribution of securities
under a plan confirmed by a court. o
Yes o
No

 Indicate the number of shares outstanding of each of the
registrant's classes of common stock, as of the latest practicable date.

 DOCUMENTS INCORPORATED BY REFERENCE

 List hereunder the following documents if incorporated by
reference and the Part of the Form 10-K (e.g., Part I, Part II, etc.) into
which the document is incorporated: (1) Any annual report to security holders;
(2) Any proxy or information statement; and (3) Any prospectus filed pursuant to
Rule 424(b) or (c) under the Securities Act of 1933. The listed documents
should be clearly described for identification purposes (e.g., annual report to
security holders for fiscal year ended December 24, 1980).

 EXPLANATORY NOTES

 The High Street Mortgage Loan, the Katy
Mills Mortgage Loan and The Boulders Resort Mortgage Loan, which constituted
approximately 9.2%, 8.4% and 6.9%, respectively, of the asset pool of the
issuing entity as of its cut-off date, are each an asset of the issuing entity
and are each part of a loan combination that includes the High Street Mortgage
Loan, the Katy Mills Mortgage Loan or The Boulders Resort Mortgage Loan
and one other pari passu loan, each of which is not an asset of the
issuing entity. These loan combinations, including the High Street Mortgage
Loan, the Katy Mills Mortgage Loan and The Boulders Resort Mortgage Loan, are
being serviced and administered pursuant to the Pooling and Servicing
Agreement, which is incorporated by reference as Exhibit 4.1 to this Annual
Report on Form 10-K.

 The Exhibit Index describes
exhibits provided by certain parties (in their capacities indicated on the
Exhibit Index) with respect to the Constitution Center Mortgage Loan, which
constituted approximately 7.7% of the asset pool of the issuing entity as of
its cut-off date. The Constitution Center Mortgage Loan is an asset of
the issuing entity and is part of a loan combination that includes the
Constitution Center Mortgage Loan, nine other pari passu loans and three
subordinate companion loans, which are not assets of the issuing entity. A pari
passu portion of the loan combination was securitized in the Morgan Stanley
Capital I Trust 2022-L8 transaction, Commission File Number 333-259741-02 (the
" MSC 2022-L8 Transaction "). This loan combination, including the
Constitution Center Mortgage Loan, is being serviced and administered pursuant
to the pooling and servicing agreement for the MSC 2022-L8 Transaction, which
is incorporated by reference as Exhibit 4.2 to this Annual Report on Form 10-K.

 The Exhibit Index describes
exhibits provided by certain parties (in their capacities indicated on the
Exhibit Index) with respect to the Hilton Sandestin Beach Resort Mortgage Loan
and the 2355 and 2383 Utah Ave Mortgage Loan, which constituted approximately
4.0% and 1.3%, respectively, of the asset pool of the issuing entity as of its
cut-off date. The Hilton Sandestin Beach Resort Mortgage Loan and the
2355 and 2383 Utah Ave Mortgage Loan are each an asset of the issuing entity
and are each part of a loan combination that includes the Hilton Sandestin
Beach Resort Mortgage Loan or the 2355 and 2383 Utah Ave Mortgage Loan and one
other pari passu loan, each of which is not an asset of the issuing
entity. The other pari passu portion of each loan combination was
securitized in the BANK 2022-BNK42 transaction, Commission File Number
333-261279-02 (the " BANK 2022-BNK42 Transaction "). These loan
combinations, including the Hilton Sandestin Beach Resort Mortgage Loan and the
2355 and 2383 Utah Ave Mortgage Loan, are being serviced and administered
pursuant to the pooling and servicing agreement for the BANK 2022-BNK42
Transaction, which is incorporated by reference as Exhibit 4.3 to this Annual
Report on Form 10-K.

 The Exhibit Index describes
exhibits provided by certain parties (in their capacities indicated on the
Exhibit Index) with respect to the 79 Fifth Avenue Mortgage Loan, which
constituted approximately 2.3% of the asset pool of the issuing entity as of
its cut-off date. The 79 Fifth Avenue Mortgage Loan is an asset of the
issuing entity and is part of a loan combination that includes the 79 Fifth
Avenue Mortgage Loan and eight other pari passu loans, which are not assets of
the issuing entity. A pari passu portion of the loan combination was
securitized in the Citigroup Commercial Mortgage Trust 2022-GC48 transaction,
Commission File Number 333-262701-02 (the "CGCMT 2022-GC48 Transaction"). This
loan combination, including the 79 Fifth Avenue Mortgage Loan, is being
serviced and administered pursuant to the pooling and servicing agreement for
the CGCMT 2022-GC48 Transaction, which is incorporated by reference as Exhibit
4.4 to this Annual Report on Form 10-K.

 The Exhibit Index describes
exhibits provided by certain parties (in their capacities indicated on the
Exhibit Index) with respect to the One Campus Martius Mortgage Loan, which
constituted approximately 4.2% of the asset pool of the issuing entity as of
its cut-off date. The One Campus Martius Mortgage Loan is an asset of the
issuing entity and is part of a loan combination that includes the One Campus
Martius Mortgage Loan and seven other pari passu loans, which are not assets of
the issuing entity. A pari passu portion of the loan combination was securitized
in the Benchmark 2022-B36 Mortgage Trust transaction, Commission File Number
333-258342-02 (the "Benchmark 2022-B36 Transaction"). This loan combination,
including the One Campus Martius Mortgage Loan, is being serviced and
administered pursuant to the pooling and servicing agreement for the Benchmark
2022-B36 Transaction, which is incorporated by reference as Exhibit 4.5 to this
Annual Report on Form 10-K.

 The master servicer of a pooling
and servicing agreement or trust and servicing agreement also functions as the
primary servicer of the related mortgage loans serviced and administered
pursuant to such agreement unless a separate primary servicer is identified
herein. If this report does not identify a separate primary servicer, the
servicer compliance statement provided by the master servicer under any such
agreement also encompasses its responsibilities as primary servicer of the
related mortgage loan or mortgage loans.

 Computershare Trust Company, National
Association is the custodian of the mortgage loans serviced under the Pooling
and Servicing Agreement, the Constitution Center Mortgage Loan, the One Campus
Martius Mortgage Loan, the Hilton Sandestin Beach Resort Mortgage Loan, the 79
Fifth Avenue Mortgage Loan and the 2355 and 2383 Utah Ave Mortgage Loan.
As a result, Computershare Trust Company, National Association is a servicing
function participant in the capacities described above, because it is servicing
mortgage loans that constituted 5% or more of the assets of the issuing entity
as of its cut-off date. The assessments of compliance with applicable servicing
criteria and accountants' attestation reports delivered by Computershare Trust
Company, National Association in the capacities described above are listed in
the Exhibit Index.

 Wells Fargo
Bank, National Association is the master servicer of the mortgage loans
serviced under the Pooling and Servicing Agreement (other than the mortgage
loans for which National Cooperative Bank, N.A. is the master servicer) and the
primary servicer of the Hilton Sandestin Beach Resort Mortgage Loan and the
2355 and 2383 Utah Ave Mortgage Loan. As a result, Wells Fargo Bank, National
Association is a "servicer" as defined in Item 1108(a)(2)(iii) of Regulation
AB, in the capacities described above, because it is servicing mortgage loans
that constituted 10% or more of the assets of the issuing entity as of its
cut-off date. The assessments of compliance with applicable servicing criteria,
accountants' attestation reports and servicer compliance statements delivered
by Wells Fargo Bank, National Association in the capacities described above are
listed in the Exhibit Index.

 Greystone
Servicing Company LLC is the special servicer of the mortgage loans serviced under
the Pooling and Servicing Agreement (other than the mortgage loans for which
National Cooperative Bank, N.A. is the special servicer) and the 79 Fifth
Avenue Mortgage Loan. As a result, Greystone Servicing Company LLC is a
"servicer" as defined in Item 1108(a)(2)(iii) of Regulation AB, in the
capacities described above, because it is servicing mortgage loans that
constituted 10% or more of the assets of the issuing entity as of its cut-off
date. The assessments of compliance with applicable servicing criteria,
accountants' attestation reports and servicer compliance statements delivered
by Greystone Servicing Company LLC in the capacities described above are listed
in the Exhibit Index.

 Midland Loan Services, a Division
of PNC Bank, National Association is the primary servicer of the Constitution
Center Mortgage Loan, the One Campus Martius Mortgage Loan and the 79 Fifth
Avenue Mortgage Loan and the special servicer of the One Campus Martius
Mortgage Loan prior to May 2, 2023. As a result, Midland Loan Services, a
Division of PNC Bank, National Association is a "servicer" as defined in Item
1108(a)(2)(iii) of Regulation AB, in the capacities described above, because it
is servicing mortgage loans that constituted 10% or more of the assets of the
issuing entity as of its cut-off date. The assessments of compliance with
applicable servicing criteria, accountants' attestation reports and servicer
compliance statements delivered by Midland Loan Services, a Division of PNC
Bank, National Association in the capacities described above are listed in the
Exhibit Index.

 LNR Partners, LLC is the special
servicer of the Constitution Center Mortgage Loan, the Hilton Sandestin Beach
Resort Mortgage Loan and the 2355 and 2383 Utah Ave Mortgage Loan. As a result,
LNR Partners, LLC is a "servicer" as defined in Item 1108(a)(2)(iii) of
Regulation AB, in the capacities described above, because it is servicing
mortgage loans that constituted 10% or more of the assets of the issuing entity
as of its cut-off date. The assessments of compliance with applicable servicing
criteria, accountants' attestation reports and servicer compliance statements
delivered by LNR Partners, LLC in the capacities described above are listed in
the Exhibit Index.

 Park Bridge Lender Services LLC is
the operating advisor of the Constitution Center Mortgage Loan, the One Campus
Martius Mortgage Loan, the Hilton Sandestin Beach Resort Mortgage Loan, the 79
Fifth Avenue Mortgage Loan and the 2355 and 2383 Utah Ave Mortgage Loan.
As a result, Park Bridge Lender Services LLC is a servicing function
participant in the capacities described above, because it is servicing mortgage
loans that constituted 5% or more of the assets of the issuing entity as of its
cut-off date. The assessments of compliance with applicable servicing criteria
and accountants' attestation reports delivered by Park Bridge Lender Services
LLC in the capacities described above are listed in the Exhibit Index.

 Wilmington Trust, National
Association acts as trustee of the mortgage loans serviced under the
Pooling and Servicing Agreement, the Constitution Center Mortgage Loan, the
Hilton Sandestin Beach Resort Mortgage Loan, the 2355 and 2383 Utah Ave
Mortgage Loan, the 79 Fifth Avenue Mortgage Loan and the One Campus Martius
Mortgage Loan. Pursuant to the Pooling and Servicing Agreement, the
pooling and servicing agreement for the MSC 2022-L8 Transaction, the pooling
and servicing agreement for the BANK 2022-BNK42 Transaction, the pooling and
servicing agreement for the CGCMT 2022-GC48 Transaction and the pooling and
servicing agreement for the Benchmark 2022-B36 Transaction, the trustee is
required to provide an assessment of compliance with applicable servicing
criteria solely with respect to Item 1122(d)(2)(iii) of Regulation AB
(regarding advances of funds or guarantees regarding collections, cash flows or
distributions, and any interest or other fees charged for such advances, are
made, reviewed and approved as specified in the transaction agreements).
However, during the reporting period, the trustee did not perform any servicing
function with respect to the servicing criteria specified in Item
1122(d)(2)(iii) of Regulation AB. The master servicer or the special
servicer, to the extent required, performed the servicing function identified with
respect to Item 1122(d)(2)(iii) of Regulation AB, and each such party included
Item 1122(d)(2)(iii) of Regulation AB in the assessment of compliance with
applicable servicing criteria and accountant's attestation report for the
subject transaction. As a result, this Annual Report on Form 10-K does
not include an assessment of compliance with applicable servicing criteria of
the trustee. One or more other servicers of the mortgage loans serviced
under the Pooling and Servicing Agreement, the Constitution Center Mortgage
Loan, the Hilton Sandestin Beach Resort Mortgage Loan, the 2355 and 2383 Utah
Ave Mortgage Loan, the 79 Fifth Avenue Mortgage Loan and the One Campus Martius
Mortgage Loan have delivered one or more assessments of compliance with respect
to Item 1122(d)(2)(iii) of Regulation AB.

 This Annual Report on Form 10-K
includes assessments of compliance with applicable servicing criteria and
accountants' attestation reports from CoreLogic Solutions, LLC. This
entity was engaged by the master servicer of the mortgage loans serviced under
the Pooling and Servicing Agreement and the primary servicer of the Hilton
Sandestin Beach Resort Mortgage Loan and the 2355 and 2383 Utah Ave Mortgage
Loan to remit tax payments received from the escrow accounts of borrowers to
local taxing authorities, to report tax amounts due, to verify tax parcel
information, and to verify non-escrow tax payments. These servicing functions
are included within the servicing criteria set forth in Items 1122(d)(4)(xi)
and 1122(d)(4)(xii) of Regulation AB. Therefore, under the
principles-based definition of "servicer" set forth in Item 1101(j) of
Regulation AB that looks to the functions that an entity performs, this vendor
is a "servicer" for the purposes of Item 1122 of Regulation AB. See
Compliance and Disclosure Interpretations, Section 301.01 (Item 1101(j)).

 The
assessments of compliance with applicable servicing criteria, accountants'
attestation reports and servicer compliance statements of the certificate
administrator of the Constitution Center Mortgage Loan, the Hilton Sandestin
Beach Resort Mortgage Loan, the 2355 and 2383 Utah Ave Mortgage Loan, the 79
Fifth Avenue Mortgage Loan and the One Campus Martius Mortgage Loan are omitted
from this Annual Report on Form 10-K as the certificate administrator pursuant
to the related pooling and servicing agreement or trust and servicing agreement
does not perform any activities that address servicing criteria with respect to
the issuing entity and because they are each not a "servicer" that meets the
criteria in Item 1108(a)(2)(i) through (iii) of Regulation AB.

 With respect to the pari passu
loan combination that includes the One Campus Martius Mortgage Loan, (i) the
report on assessment of compliance with servicing criteria and attestation
report on assessment of compliance with servicing criteria of K-Star Asset
Management LLC as special servicer of the One Campus Martius Mortgage Loan on
and after May 2, 2023, listed on the Exhibit Index are omitted from this Annual
Report on Form 10-K as they are not required to be included on this Annual
Report on Form 10-K per Instruction 3 to Item 1122 of Regulation AB because it
is a party performing activities that address servicing criteria relating to 5%
or less of the assets of the issuing entity; and (ii) the servicer compliance
statement of K-Star Asset Management LLC as special servicer of the One Campus
Martius Mortgage Loan on and after May 2, 2023, listed on the Exhibit Index is
omitted from this Annual Report on Form 10-K as it is not required by Item 1123
of Regulation AB to be included on this Annual Report on Form 10-K because it
is an unaffiliated party that is not a "servicer" that meets the criteria in
Item 1108(a)(2)(i) through (iii) of Regulation AB.

 Item 1. Business.

 Item 1A. Risk Factors.

 Item 1B. Unresolved Staff
Comments.

 None.

 Item 1C. Cybersecurity.

 Item 2. Properties.

 Item 3. Legal Proceedings.

 Item 4. Mine Safety
Disclosures.

 Item 5. Market for
Registrant's Common Equity, Related Stockholder Matters and Issuer Purchases of
Equity Securities.

 Item 6. [Reserved]

 Item 7. Management's Discussion
and Analysis of Financial Condition and Results of Operations.

 Item 7A. Quantitative and
Qualitative Disclosures About Market Risk.

 Item 8. Financial
Statements and Supplementary Data.

 Item 9. Changes in and
Disagreements With Accountants on Accounting and Financial Disclosure.

 Item 9A. Controls and
Procedures.

 Item 9B. Other
Information.

 None.

 Item 9C. Disclosure
Regarding Foreign Jurisdictions that Prevent Inspections.

 None.

 Item 10. Directors,
Executive Officers and Corporate Governance.

 Item 11. Executive
Compensation.

 Item 12. Security
Ownership of Certain Beneficial Owners and Management and Related Stockholder
Matters.

 Item 13. Certain
Relationships and Related Transactions, and Director Independence.

 Item 14. Principal
Accountant Fees and Services.

 ADDITIONAL DISCLOSURE ITEMS FOR REGULATION AB

 Item 1112(b) of Regulation AB, Significant
Obligor Financial Information.

 No single obligor represents 10% or more of the pool assets
held by the issuing entity.

 Item 1114(b)(2) of Regulation
AB, Significant Enhancement Provider Financial Information.

 No entity or group of affiliated entities provides
any external credit enhancement or other support for the certificates within
this transaction as described under Item 1114(a) of Regulation AB.

 Item 1115(b) of Regulation AB,
Certain Derivatives Instruments (Financial Information).

 No entity or group of affiliated entities provides any
derivative instruments or other support for the certificates within this
transaction as described under Item 1115 of Regulation AB.

 Item 1117 of Regulation AB,
Legal Proceedings.

 The registrant knows of no material pending legal proceeding
involving the trust or any party related to the trust, other than routine
litigation incidental to the duties of those respective parties.

 Item 1119 of Regulation AB,
Affiliations and Certain Relationships and Related Transactions.

 The information regarding this Item has been previously
provided in the prospectus of the Registrant relating to the issuing entity
filed on August 25, 2022 pursuant to Rule 424(b)(2).

 Item 1122 of Regulation AB,
Compliance with Applicable Servicing Criteria.

assessments of compliance with respect to the mortgage loans are attached
hereto under Item 15 to this Annual Report on Form 10-K. Attached as Exhibit AA
to the Pooling and Servicing Agreement incorporated by reference as Exhibit 4.1
to this Annual Report on Form 10-K is a chart identifying the entities
participating in a servicing function for the transaction responsible for each
applicable servicing criteria set forth in Item 1122(d).

assessments of compliance with respect to the Constitution Center Mortgage
Loan, which is being serviced and administered pursuant to the pooling and
servicing agreement for the MSC 2022-L8 Transaction, are attached hereto under
Item 15 to this Annual Report on Form 10-K. Attached as Exhibit AA to the
pooling and servicing agreement for the MSC 2022-L8 Transaction incorporated by
reference as Exhibit 4.2 to this Annual Report on Form 10-K is a chart
identifying the entities participating in a servicing function for the MSC
2022-L8 Transaction responsible for each applicable servicing criteria set
forth in Item 1122(d).

assessments of compliance with respect to the Hilton Sandestin Beach Resort
Mortgage Loan and the 2355 and 2383 Utah Ave Mortgage Loan, which are being
serviced and administered pursuant to the pooling and servicing agreement for
the BANK 2022-BNK42 Transaction, are attached hereto under Item 15 to this
Annual Report on Form 10-K. Attached as Exhibit Z to the pooling and servicing
agreement for the BANK 2022-BNK42 Transaction incorporated by reference as
Exhibit 4.3 to this Annual Report on Form 10-K is a chart identifying the
entities participating in a servicing function for the BANK 2022-BNK42
Transaction responsible for each applicable servicing criteria set forth in
Item 1122(d).

assessments of compliance with respect to the 79 Fifth Avenue Mortgage Loan,
which is being serviced and administered pursuant to the pooling and servicing
agreement for the CGCMT 2022-GC48 Transaction, are attached hereto under Item 15
to this Annual Report on Form 10-K. Attached as Exhibit O to the pooling and
servicing agreement for the CGCMT 2022-GC48 Transaction incorporated by
reference as Exhibit 4.4 to this Annual Report on Form 10-K is a chart
identifying the entities participating in a servicing function for the CGCMT
2022-GC48 Transaction responsible for each applicable servicing criteria set
forth in Item 1122(d).

assessments of compliance with respect to the One Campus Martius Mortgage Loan,
which is being serviced and administered pursuant to the pooling and servicing
agreement for the Benchmark 2022-B36 Transaction, are attached hereto under
Item 15 to this Annual Report on Form 10-K. Attached as Exhibit AA to the
pooling and servicing agreement for the Benchmark 2022-B36 Transaction
incorporated by reference as Exhibit 4.5 to this Annual Report on Form 10-K is
a chart identifying the entities participating in a servicing function for the
Benchmark 2022-B36 Transaction responsible for each applicable servicing
criteria set forth in Item 1122(d).

 Item 1123 of Regulation AB,
Servicer Compliance Statement.

 The servicer compliance statements are attached as Exhibits
to this Annual Report on Form 10-K.

 Item 15. Exhibit and Financial
Statement Schedules

 (a) The following is a list of documents filed as part of
this Annual Report on Form 10-K:

 (1) Not applicable

 (2) Not applicable

 (3) See below

 4.1
 Pooling and Servicing Agreement, dated as of August 1,
2022, among Wells Fargo Commercial Mortgage Securities, Inc., as Depositor,
Wells Fargo Bank, National Association, as General Master Servicer, Greystone
Servicing Company LLC, as General Special Servicer, National Cooperative Bank,
N.A., as NCB Master Servicer and as NCB Special Servicer, Computershare Trust
Company, National Association, as Certificate Administrator, Wilmington Trust,
National Association, as Trustee, and Pentalpha Surveillance LLC, as Operating
Advisor and as Asset Representations Reviewer (filed as Exhibit 4.1 to the
registrant's Current Report on Form 8-K/A filed on October 17, 2022 under

 4.2
 Pooling and Servicing Agreement, dated as of April 1,
2022, between Morgan Stanley Capital I Inc., as Depositor, Midland Loan
Services, a Division of PNC Bank, National Association, as Master Servicer, LNR
Partners, LLC, as Special Servicer, Computershare Trust Company, National
Association, as Certificate Administrator, Wilmington Trust, National
Association, as Trustee, and Park Bridge Lender Services LLC, as Operating
Advisor and Asset Representations Reviewer (filed as Exhibit 99.5 to the
registrant's Current Report on Form 8-K filed on August 25, 2022 under

 4.3
 Pooling and Servicing Agreement, dated as of June 1,
2022, between Banc of America Merrill Lynch Commercial Mortgage Inc., as
Depositor, Wells Fargo Bank, National Association, as General Master Servicer,
LNR Partners, LLC, as General Special Servicer, National Cooperative Bank,
N.A., as NCB Master Servicer and as NCB Special Servicer, Computershare Trust
Company, National Association, as Certificate Administrator, Wilmington Trust,
National Association, as Trustee, and Park Bridge Lender Services LLC, as
Operating Advisor and as Asset Representations Reviewer (filed as Exhibit 99.7
to the registrant's Current Report on Form 8-K filed on August 25, 2022 under

 4.4
 Pooling and Servicing Agreement, dated as June 1, 2022,
among Citigroup Commercial Mortgage Securities Inc., as Depositor, Midland Loan
Services, a Division of PNC Bank, National Association, as Master Servicer,
Greystone Servicing Company LLC, as a Special Servicer, Rialto Capital
Advisors, LLC, as a Special Servicer solely with respect to the Yorkshire &
Lexington Towers Whole Loan, Park Bridge Lender Services LLC, as Operating
Advisor and Asset Representations Reviewer, Computershare Trust Company,
National Association, as Certificate Administrator, and Wilmington Trust,
National Association, as Trustee (filed as Exhibit 99.8 to the registrant's
Current Report on Form 8-K filed on August 25, 2022 under Commission File No.

 4.5
 Pooling and Servicing Agreement, dated as of August 1, 2022,
between J.P. Morgan Chase Commercial Mortgage Securities Corp., as Depositor,
Midland Loan Services, a Division of PNC Bank, National Association, as Master
Servicer, Midland Loan Services, a Division of PNC Bank, National Association,
as Special Servicer, Computershare Trust Company, National Association, as
Certificate Administrator, Wilmington Trust, National Association, as Trustee,
and Park Bridge Lender Services LLC, as Operating Advisor and as Asset
Representations Reviewer (filed as Exhibit 99.6 to the registrant's Current
Report on Form 8-K filed on August 25, 2022 under Commission File No.

 4.6
 Agreement Between Note Holders, dated as of July 19,
2022, by and between Wells Fargo Bank, National Association, as Initial Note
A-1 Holder, and Wells Fargo Bank, National Association, as Initial Note A-2
Holder (filed as Exhibit 99.9 to the registrant's Current Report on Form 8-K
filed on August 25, 2022 under Commission File No. 333-257991-05 and
incorporated by reference herein).

 4.7
 Agreement Between Note Holders, dated as of July 21,
2022, by and between Bank of America, N.A., as Initial Note A-1 Holder, and
JPMorgan Chase Bank, National Association, as Initial Note A-2 Holder (filed as
Exhibit 99.10 to the registrant's Current Report on Form 8-K filed on August
25, 2022 under Commission File No. 333-257991-05 and incorporated by reference
herein).

 4.8
 Intercreditor Agreement, dated as of March 1, 2022, by
and between Morgan Stanley Bank, N.A., as Note A-1 Holder, Morgan Stanley Bank,
N.A., as Note A-2 Holder, Morgan Stanley Bank, N.A., as Note A-3 Holder, Morgan
Stanley Bank, N.A., as Note A-4 Holder, Morgan Stanley Bank, N.A., as Note A-5
Holder, Morgan Stanley Bank, N.A., as Note A-6 Holder, Morgan Stanley Bank,
N.A., as Note A-7 Holder, Morgan Stanley Bank, N.A., as Note A-8 Holder, and
Morgan Stanley Bank, N.A., as Note A-9 Holder, Sun Life Assurance Company of
Canada, as Note B-1 Holder, Sun Life Insurance (Canada) Limited, as Note B-2
Holder, and Sun Life Hong Kong Limited, as Note B-3 Holder (filed as Exhibit
99.11 to the registrant's Current Report on Form 8-K filed on August 25, 2022
under Commission File No. 333-257991-05 and incorporated by reference herein).

 4.9
 Agreement Between Note Holders, dated as of July 14,
2022, by and between Wells Fargo Bank, National Association, as Initial Note
A-1 Holder, and Column Financial, Inc., as Initial Note A-2 Holder (filed as
Exhibit 99.12 to the registrant's Current Report on Form 8-K filed on August
25, 2022 under Commission File No. 333-257991-05 and incorporated by reference
herein).

 4.10
 Co-Lender Agreement, dated as of June 28, 2022, by and
between JPMorgan Chase Bank, National Association, as Initial Note A-1 Holder,
JPMorgan Chase Bank, National Association, as Initial Note A-2 Holder, JPMorgan
Chase Bank, National Association, as Initial Note A-3 Holder, JPMorgan Chase Bank,
National Association, as Initial Note A-4 Holder, JPMorgan Chase Bank, National
Association, as Initial Note A-5 Holder, Morgan Stanley Bank, N.A., as Initial
Note A-6 Holder, Morgan Stanley Bank, N.A., as Initial Note A-7 Holder, and
Morgan Stanley Bank, N.A., as Initial Note A-8 Holder (filed as Exhibit 99.13
to the registrant's Current Report on Form 8-K filed on August 25, 2022 under

 4.11
 Agreement Between Note Holders, dated as of June 9, 2022,
by and between Wells Fargo Bank, National Association, as Initial Note A-1
Holder, Wells Fargo Bank, National Association, as Initial Note A-2 Holder, and
Wells Fargo Bank, National Association, as Initial Note A-3 Holder (filed as
Exhibit 99.14 to the registrant's Current Report on Form 8-K filed on August
25, 2022 under Commission File No. 333-257991-05 and incorporated by reference
herein).

 4.12
 Co-Lender Agreement, dated as of May 11, 2022, by and
among Citi Real Estate Funding Inc., as Initial Note A-1-1 Holder, Citi Real
Estate Funding Inc., as Initial Note A-1-2 Holder, Citi Real Estate Funding
Inc., as Initial Note A-1-3 Holder, Wells Fargo Bank, National Association, as
Initial Note A-2-1 Holder, Wells Fargo Bank, National Association, as Initial
Note A-2-2 Holder, Wells Fargo Bank, National Association, as Initial
Note A-2-3-1 Holder, Wells Fargo Bank, National Association, as Initial
Note A-2-3-2 Holder, JPMorgan Chase Bank, National Association, as Initial
Note A-3-1 Holder, JPMorgan Chase Bank, National Association, as Initial
Note A-3-2 Holder, and JPMorgan Chase Bank, National Association, as Initial
Note A-3-3 Holder (filed as Exhibit 99.15 to the registrant's Current Report on
Form 8-K filed on August 25, 2022 under Commission File No. 333-257991-05 and
incorporated by reference herein).

 4.13
 Agreement Between Note Holders, dated as of June 9, 2022,
by and between Morgan Stanley Bank, N.A., as Initial Note A-1 Holder, Morgan
Stanley Bank, N.A., as Initial Note A-2 Holder, and Morgan Stanley Mortgage
Capital Holdings LLC, as Initial Agent (filed as Exhibit 99.16 to the
registrant's Current Report on Form 8-K filed on August 25, 2022 under

 Rule 13a-14(d)/15d-14(d) Certifications.

Reports on assessment of compliance with servicing criteria for asset-backed
securities.

 33.1
 Wells Fargo Bank, National Association, as General
Master Servicer

 33.2
 National Cooperative Bank, N.A., as NCB Master

 33.3
 Greystone Servicing Company LLC, as General Special

 33.4
 National Cooperative Bank, N.A., as NCB Special
Servicer (see Exhibit 33.2)

 33.5
Wilmington Trust, National Association, as Trustee (Omitted. See Explanatory
Notes.)

 33.6
as Certificate Administrator

 33.7
as Custodian

 33.8
 Pentalpha Surveillance LLC, as Operating Advisor

 33.9
Participant

 33.10
Servicer of the High Street Mortgage Loan (see Exhibit 33.1)

 33.11
Servicer of the High Street Mortgage Loan (see Exhibit 33.3)

 33.12
Wilmington Trust, National Association, as Trustee of the High Street Mortgage

 33.13
as Custodian of the High Street Mortgage Loan (see Exhibit 33.7)

 33.14
the High Street Mortgage Loan (see Exhibit 33.8)

 33.15
Participant of the High Street Mortgage Loan (see Exhibit 33.9)

 33.16
Servicer of the Katy Mills Mortgage Loan (see Exhibit 33.1)

 33.17
Servicer of the Katy Mills Mortgage Loan (see Exhibit 33.3)

 33.18
Wilmington Trust, National Association, as Trustee of the Katy Mills Mortgage

 33.19
as Custodian of the Katy Mills Mortgage Loan (see Exhibit 33.7)

 33.20
the Katy Mills Mortgage Loan (see Exhibit 33.8)

 33.21
Participant of the Katy Mills Mortgage Loan (see Exhibit 33.9)

 33.22
Servicer of The Boulders Resort Mortgage Loan (see Exhibit 33.1)

 33.23
Servicer of The Boulders Resort Mortgage Loan (see Exhibit 33.3)

 33.24
Wilmington Trust, National Association, as Trustee of The Boulders Resort

 33.25
as Custodian of The Boulders Resort Mortgage Loan (see Exhibit 33.7)

 33.26
The Boulders Resort Mortgage Loan (see Exhibit 33.8)

 33.27
Participant of The Boulders Resort Mortgage Loan (see Exhibit 33.9)

 33.28
National Association, as Primary Servicer of the Constitution Center Mortgage
Loan

 33.29
Constitution Center Mortgage Loan

 33.30
Wilmington Trust, National Association, as Trustee of the Constitution Center

 33.31
as Custodian of the Constitution Center Mortgage Loan (see Exhibit 33.7)

 33.32
Advisor of the Constitution Center Mortgage Loan

 33.33
Servicer of the Hilton Sandestin Beach Resort Mortgage Loan (see Exhibit 33.1)

 33.34
Hilton Sandestin Beach Resort Mortgage Loan (see Exhibit 33.29)

 33.35
Wilmington Trust, National Association, as Trustee of the Hilton Sandestin
Beach Resort Mortgage Loan (Omitted. See Explanatory Notes.)

 33.36
as Custodian of the Hilton Sandestin Beach Resort Mortgage Loan (see Exhibit
33.7)

 33.37
Advisor of the Hilton Sandestin Beach Resort Mortgage Loan (see Exhibit 33.32)

 33.38
Participant of the Hilton Sandestin Beach Resort Mortgage Loan (see Exhibit
33.9)

 33.39
Servicer of the 2355 and 2383 Utah Ave Mortgage Loan (see Exhibit 33.1)

 33.40
 LNR Partners, LLC, as Special Servicer of the 2355
and 2383 Utah Ave Mortgage Loan (see Exhibit 33.29)

 33.41
Wilmington Trust, National Association, as Trustee of the 2355 and 2383 Utah
Ave Mortgage Loan (Omitted. See Explanatory Notes.)

 33.42
 Computershare Trust Company, National Association, as
Custodian of the 2355 and 2383 Utah Ave Mortgage Loan (see Exhibit 33.7)

 33.43
Advisor of the 2355 and 2383 Utah Ave Mortgage Loan (see Exhibit 33.32)

 33.44
Participant of the 2355 and 2383 Utah Ave Mortgage Loan (see Exhibit 33.9)

 33.45
National Association, as Primary Servicer of the 79 Fifth Avenue Mortgage Loan
(see Exhibit 33.28)

 33.46
Servicer of the 79 Fifth Avenue Mortgage Loan (see Exhibit 33.3)

 33.47
Wilmington Trust, National Association, as Trustee of the 79 Fifth Avenue

 33.48
as Custodian of the 79 Fifth Avenue Mortgage Loan (see Exhibit 33.7)

 33.49
Advisor of the 79 Fifth Avenue Mortgage Loan (see Exhibit 33.32)

 33.50
National Association, as Primary Servicer of the One Campus Martius Mortgage
Loan (see Exhibit 33.28)

 33.51
National Association, as Special Servicer of the One Campus Martius Mortgage
Loan prior to May 2, 2023 (see Exhibit 33.28)

 33.52
K-Star Asset Management LLC, as Special Servicer of the One Campus Martius
Mortgage Loan on and after May 2, 2023 (Omitted. See Explanatory Notes.)

 33.53
Wilmington Trust, National Association, as Trustee of the One Campus Martius

 33.54
as Custodian of the One Campus Martius Mortgage Loan (see Exhibit 33.7)

 33.55
Advisor of the One Campus Martius Mortgage Loan (see Exhibit 33.32)

 Attestation
reports on assessment of compliance with servicing criteria for asset-backed
securities.

 34.1
 Wells Fargo Bank, National Association, as General
Master Servicer

 34.2
 National Cooperative Bank, N.A., as NCB Master

 34.3
 Greystone Servicing Company LLC, as General Special

 34.4
 National Cooperative Bank, N.A., as NCB Special
Servicer (see Exhibit 34.2)

 34.5
Wilmington Trust, National Association, as Trustee (Omitted. See Explanatory
Notes.)

 34.6
as Certificate Administrator

 34.7
as Custodian

 34.8
 Pentalpha Surveillance LLC, as Operating Advisor

 34.9
Participant

 34.10
Servicer of the High Street Mortgage Loan (see Exhibit 34.1)

 34.11
Servicer of the High Street Mortgage Loan (see Exhibit 34.3)

 34.12
Wilmington Trust, National Association, as Trustee of the High Street Mortgage

 34.13
as Custodian of the High Street Mortgage Loan (see Exhibit 34.7)

 34.14
the High Street Mortgage Loan (see Exhibit 34.8)

 34.15
Participant of the High Street Mortgage Loan (see Exhibit 34.9)

 34.16
Servicer of the Katy Mills Mortgage Loan (see Exhibit 34.1)

 34.17
Servicer of the Katy Mills Mortgage Loan (see Exhibit 34.3)

 34.18
Wilmington Trust, National Association, as Trustee of the Katy Mills Mortgage

 34.19
as Custodian of the Katy Mills Mortgage Loan (see Exhibit 34.7)

 34.20
the Katy Mills Mortgage Loan (see Exhibit 34.8)

 34.21
Participant of the Katy Mills Mortgage Loan (see Exhibit 34.9)

 34.22
Servicer of The Boulders Resort Mortgage Loan (see Exhibit 34.1)

 34.23
Servicer of The Boulders Resort Mortgage Loan (see Exhibit 34.3)

 34.24
Wilmington Trust, National Association, as Trustee of The Boulders Resort

 34.25
as Custodian of The Boulders Resort Mortgage Loan (see Exhibit 34.7)

 34.26
The Boulders Resort Mortgage Loan (see Exhibit 34.8)

 34.27
Participant of The Boulders Resort Mortgage Loan (see Exhibit 34.9)

 34.28
National Association, as Primary Servicer of the Constitution Center Mortgage
Loan

 34.29
Constitution Center Mortgage Loan

 34.30
Wilmington Trust, National Association, as Trustee of the Constitution Center

 34.31
as Custodian of the Constitution Center Mortgage Loan (see Exhibit 34.7)

 34.32
Advisor of the Constitution Center Mortgage Loan

 34.33
Servicer of the Hilton Sandestin Beach Resort Mortgage Loan (see Exhibit 34.1)

 34.34
 LNR Partners, LLC, as Special Servicer of the Hilton
Sandestin Beach Resort Mortgage Loan (see Exhibit 34.29)

 34.35
Wilmington Trust, National Association, as Trustee of the Hilton Sandestin
Beach Resort Mortgage Loan (Omitted. See Explanatory Notes.)

 34.36
as Custodian of the Hilton Sandestin Beach Resort Mortgage Loan (see Exhibit
34.7)

 34.37
Advisor of the Hilton Sandestin Beach Resort Mortgage Loan (see Exhibit 34.32)

 34.38
Participant of the Hilton Sandestin Beach Resort Mortgage Loan (see Exhibit
34.9)

 34.39
Servicer of the 2355 and 2383 Utah Ave Mortgage Loan (see Exhibit 34.1)

 34.40
 LNR Partners, LLC, as Special Servicer of the 2355
and 2383 Utah Ave Mortgage Loan (see Exhibit 34.29)

 34.41
Wilmington Trust, National Association, as Trustee of the 2355 and 2383 Utah
Ave Mortgage Loan (Omitted. See Explanatory Notes.)

 34.42
as Custodian of the 2355 and 2383 Utah Ave Mortgage Loan (see Exhibit 34.7)

 34.43
Advisor of the 2355 and 2383 Utah Ave Mortgage Loan (see Exhibit 34.32)

 34.44
Participant of the 2355 and 2383 Utah Ave Mortgage Loan (see Exhibit 34.9)

 34.45
National Association, as Primary Servicer of the 79 Fifth Avenue Mortgage Loan
(see Exhibit 34.28)

 34.46
Servicer of the 79 Fifth Avenue Mortgage Loan (see Exhibit 34.3)

 34.47
Wilmington Trust, National Association, as Trustee of the 79 Fifth Avenue

 34.48
as Custodian of the 79 Fifth Avenue Mortgage Loan (see Exhibit 34.7)

 34.49
Advisor of the 79 Fifth Avenue Mortgage Loan (see Exhibit 34.32)

 34.50
National Association, as Primary Servicer of the One Campus Martius Mortgage
Loan (see Exhibit 34.28)

 34.51
National Association, as Special Servicer of the One Campus Martius Mortgage
Loan prior to May 2, 2023 (see Exhibit 34.28)

 34.52
K-Star Asset Management LLC, as Special Servicer of the One Campus Martius
Mortgage Loan on and after May 2, 2023 (Omitted. See Explanatory Notes.)

 34.53
Wilmington Trust, National Association, as Trustee of the One Campus Martius Mortgage

 34.54
 Computershare Trust Company, National Association, as
Custodian of the One Campus Martius Mortgage Loan (see Exhibit 34.7)

 34.55
Advisor of the One Campus Martius Mortgage Loan (see Exhibit 34.32)

Servicer compliance statements.

 35.1
 Wells Fargo Bank, National Association, as General
Master Servicer

 35.2
 National Cooperative Bank, N.A., as NCB Master

 35.3
 Greystone Servicing Company LLC, as General Special

 35.4
 National Cooperative Bank, N.A., as NCB Special
Servicer (see Exhibit 35.2)

 35.5
as Certificate Administrator

 35.6
Servicer of the High Street Mortgage Loan (see Exhibit 35.1)

 35.7
Servicer of the High Street Mortgage Loan (see Exhibit 35.3)

 35.8
Servicer of the Katy Mills Mortgage Loan (see Exhibit 35.1)

 35.9
Servicer of the Katy Mills Mortgage Loan (see Exhibit 35.3)

 35.10
Servicer of The Boulders Resort Mortgage Loan (see Exhibit 35.1)

 35.11
Servicer of The Boulders Resort Mortgage Loan (see Exhibit 35.3)

 35.12
National Association, as Primary Servicer of the Constitution Center Mortgage
Loan

 35.13
Constitution Center Mortgage Loan

 35.14
Servicer of the Hilton Sandestin Beach Resort Mortgage Loan (see Exhibit 35.1)

 35.15
Hilton Sandestin Beach Resort Mortgage Loan (see Exhibit 35.13)

 35.16
Servicer of the 2355 and 2383 Utah Ave Mortgage Loan (see Exhibit 35.1)

 35.17
 LNR Partners, LLC, as Special Servicer of the 2355
and 2383 Utah Ave Mortgage Loan (see Exhibit 35.13)

 35.18
National Association, as Primary Servicer of the 79 Fifth Avenue Mortgage Loan
(see Exhibit 35.12)

 35.19
Servicer of the 79 Fifth Avenue Mortgage Loan (see Exhibit 35.3)

 35.20
National Association, as Primary Servicer of the One Campus Martius Mortgage
Loan (see Exhibit 35.12)

 35.21
National Association, as Special Servicer of the One Campus Martius Mortgage
Loan prior to May 2, 2023 (see Exhibit 35.12)

 35.22
K-Star Asset Management LLC, as Special Servicer of the One Campus Martius
Mortgage Loan on and after May 2, 2023 (Omitted. See Explanatory Notes.)

 99.1
 Mortgage Loan Purchase Agreement, dated as of August 8,
2022, between Wells Fargo Bank, National Association and Wells Fargo Commercial
Mortgage Securities, Inc. (filed as Exhibit 99.1 to the registrant's Current
Report on Form 8-K filed on August 25, 2022 under Commission File No.

 99.2
 Mortgage Loan Purchase Agreement, dated as of August 8,
2022, between Morgan Stanley Mortgage Capital Holdings LLC and Wells Fargo
Commercial Mortgage Securities, Inc. (filed as Exhibit 99.2 to the registrant's
Current Report on Form 8-K filed on August 25, 2022 under Commission File No.

 99.3
 Mortgage Loan Purchase Agreement, dated as of August 8,
2022, between Bank of America, National Association and Wells Fargo Commercial
Mortgage Securities, Inc. (filed as Exhibit 99.3 to the registrant's Current
Report on Form 8-K filed on August 25, 2022 under Commission File No.

 99.4
 Mortgage Loan Purchase Agreement, dated as of August 8,
2022, between National Cooperative Bank, N.A. and Wells Fargo Commercial
Mortgage Securities, Inc. (filed as Exhibit 99.4 to the registrant's Current
Report on Form 8-K filed on August 25, 2022 under Commission File No.

 (b)
The exhibits required to be filed by the Registrant pursuant to Item 601 of
Regulation S-K are listed above.

 (c)
Not Applicable.

 SIGNATURES

 Pursuant to the requirements of Section 13 or 15(d) of the
Securities Exchange Act of 1934, the registrant has duly caused this report to
be signed on its behalf by the undersigned, thereunto duly authorized.

 Wells Fargo Commercial Mortgage
Securities, Inc.

(Depositor)

 /s/ Anthony
Sfarra

 Anthony
Sfarra, President

 (senior officer in charge of
securitization of the depositor)

 Date: March 15, 2024


UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

 Washington, D.C. 20549

 FORM 10-K

 (Mark One)

 x ANNUAL REPORT PURSUANT TO SECTION
13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934

 For the fiscal year ended December 31, 2023

or

 o TRANSITION
REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934

 For the transition period from _____ to _____

Commission file number of the issuing entity: 333-206703-01

 Central Index Key Number of the issuing entity:
0001655153

 CSAIL 2015-C4 Commercial Mortgage
Trust

 (exact name of the issuing entity as specified in its
charter)

 Central Index Key Number of the depositor: 0000802106

 Credit Suisse First Boston Mortgage
Securities Corp.

 (exact name of the depositor as specified in its
charter)

 Central Index Key Number of the sponsor: 0001628601

 Column Financial, Inc.

 Central Index Key Number of the sponsor: 0001632269

 Benefit Street Partners CRE Finance
LLC

 Central Index Key Number of the sponsor: 0001666643

 Walker & Dunlop Commercial
Property Funding I CS, LLC

 Central Index Key Number of the sponsor: 0001505494

 The Bancorp Bank, National
Association

 (formerly known as The
Bancorp Bank)

 Central Index Key Number of the sponsor: 0001576832

 MC-Five Mile Commercial Mortgage
Finance LLC

 New York

 (State or other jurisdiction of

 incorporation or organization of

 the issuing entity)

 38-3984607

 38-3984608

 (I.R.S. Employer

 Identification Numbers)

c/o Computershare Trust Company, National Association, as agent for

 Wells Fargo Bank, National Association

 as Certificate Administrator

 9062 Old Annapolis Road

 Columbia, MD

 (Address of principal
executive offices of the issuing entity)

 21045

 (Zip Code)

 Registrant's telephone number,
including area code:

 (212) 272-6858

 Securities registered pursuant to Section 12(b) of the Act:

 Title of each class

 Trading Symbol(s)

 Name of each exchange on which registered

 None

 Securities registered pursuant to Section 12(g) of the
Act: None.

 Indicate by check mark if the registrant is a well-known
seasoned issuer, as defined in Rule 405 of the Securities Act. o Yes
No

 Indicate by check mark if the registrant is not required to
file reports pursuant to Section 13 or Section 15(d) of the Act. o Yes
No

 Indicate by check mark whether the registrant (1) has filed
all reports required to be filed by Section 13 or 15(d) of the Securities
Exchange Act of 1934 during the preceding 12 months (or for such shorter period
that the registrant was required to file such reports), and (2) has been
subject to such filing requirements for the past 90 days. Yes o No

 Indicate by check mark whether the registrant has submitted
electronically every Interactive Data File required to be submitted pursuant to
Rule 405 of Regulation S-T (Section 232.405 of this chapter) during the
preceding 12 months (or for such shorter period that the registrant was
required to submit such files).

 Indicate by check mark whether the registrant is a large
accelerated filer, an accelerated filer, a non-accelerated filer, a smaller
reporting company, or an emerging growth company. See the definitions of "large
accelerated filer," "accelerated filer," "smaller reporting company," and
"emerging growth company" in Rule 12b-2 of the Exchange Act.

 Large accelerated
filer o
Accelerated
filer
o

 Non-accelerated
filer

Smaller reporting
company
o

Emerging growth
company
o

 If an emerging growth company, indicate by check mark if the
registrant has elected not to use the extended transition period for complying
with any new or revised financial accounting standards provided pursuant to
Section 13(a) of the Exchange Act. o

 Indicate by check mark whether the registrant has filed a
report on and attestation to its management's assessment of the effectiveness
of its internal control over financial reporting under Section 404(b) of the
Sarbanes-Oxley Act (15 U.S.C. 7262(b)) by the registered public accounting firm
that prepared or issued its audit report. o

 If securities are registered pursuant to Section 12(b) of the
Act, indicate by check mark whether the financial statements of the registrant
included in the filing reflect the correction of an error to previously issued
financial statements. o

 Indicate by check mark whether any of those error corrections
are restatements that required a recovery analysis of incentive-based
compensation received by any of the registrant's executive officers during the
relevant recovery period pursuant to §240.10D-1(b). o

 Indicate by check mark whether the registrant is a shell
company (as defined in Rule 12b-2 of the Act). o Yes No

 State the aggregate market value of the voting and non-voting
common equity held by non-affiliates computed by reference to the price at
which the common equity was last sold, or the average bid and asked price of
such common equity, as of the last business day of the registrant's most
recently completed second fiscal quarter.

 Indicate by check mark whether the registrant has filed all
documents and reports required to be filed by Section 12, 13 or 15(d) of the
Securities Exchange Act of 1934 subsequent to the distribution of securities
under a plan confirmed by a court. o
Yes o
No

 Indicate the number of shares outstanding of each of the
registrant's classes of common stock, as of the latest practicable date.

 DOCUMENTS INCORPORATED BY REFERENCE

 List hereunder the following documents if incorporated by
reference and the Part of the Form 10-K (e.g., Part I, Part II, etc.) into
which the document is incorporated: (1) Any annual report to security holders;
(2) Any proxy or information statement; and (3) Any prospectus filed pursuant
to Rule 424(b) or (c) under the Securities Act of 1933. The listed documents
should be clearly described for identification purposes (e.g., annual report to
security holders for fiscal year ended December 24, 1980).

 EXPLANATORY NOTES

 The Exhibit Index describes
exhibits provided by certain parties (in their capacities indicated on the
Exhibit Index) with respect to the Arizona Grand Resort & Spa Mortgage
Loan, which constituted approximately 4.8% of the asset pool of the issuing
entity as of its cut-off date. The Arizona Grand Resort & Spa
Mortgage Loan is an asset of the issuing entity and is part of a loan
combination that includes the Arizona Grand Resort & Spa Mortgage Loan and
one other pari passu loan, which is not an asset of the issuing entity.
The other pari passu portion of the loan combination was securitized in
the CSAIL 2015-C3 Commercial Mortgage Trust transaction, Commission File Number
333-199921-03 (the " CSAIL 2015-C3 Transaction "). This loan combination,
including the Arizona Grand Resort & Spa Mortgage Loan, is being serviced
and administered pursuant to the pooling and servicing agreement for the CSAIL
2015-C3 Transaction, which is incorporated by reference as Exhibit 4.2 to this
Annual Report on Form 10-K.

 The master servicer of a pooling
and servicing agreement or trust and servicing agreement also functions as the
primary servicer of the related mortgage loans serviced and administered
pursuant to such agreement unless a separate primary servicer is identified
herein. If this report does not identify a separate primary servicer, the
servicer compliance statement provided by the master servicer under any such
agreement also encompasses its responsibilities as primary servicer of the
related mortgage loan or mortgage loans.

 Wells Fargo Bank, National
Association is the custodian of the mortgage loans serviced under the Pooling
and Servicing Agreement and the Arizona Grand Resort & Spa Mortgage
Loan. As a result, Wells Fargo Bank, National Association is a servicing
function participant in the capacities described above, because it is servicing
mortgage loans that constituted 5% or more of the assets of the issuing entity
as of its cut-off date. The assessments of compliance with applicable servicing
criteria and accountants' attestation reports delivered by Wells Fargo Bank,
National Association in the capacities described above are listed in the
Exhibit Index.

 Midland Loan Services, a Division
of PNC Bank, National Association is the special servicer of the mortgage loans
serviced under the Pooling and Servicing Agreement and the primary servicer of
the Arizona Grand Resort & Spa Mortgage Loan. As a result, Midland Loan
Services, a Division of PNC Bank, National Association is a "servicer" as
defined in Item 1108(a)(2)(iii) of Regulation AB, in the capacities described
above, because it is servicing mortgage loans that constituted 10% or more of
the assets of the issuing entity as of its cut-off date. The assessments of
compliance with applicable servicing criteria, accountants' attestation reports
and servicer compliance statements delivered by Midland Loan Services, a
Division of PNC Bank, National Association in the capacities described above
are listed in the Exhibit Index.

 Pentalpha Surveillance LLC is the operating
advisor of the mortgage loans serviced under the Pooling and Servicing
Agreement and the Arizona Grand Resort & Spa Mortgage Loan. As a
result, Pentalpha Surveillance LLC is a servicing function participant in the
capacities described above, because it is servicing mortgage loans that
constituted 5% or more of the assets of the issuing entity as of its cut-off
date. The assessments of compliance with applicable servicing criteria and
accountants' attestation reports delivered by Pentalpha Surveillance LLC in the
capacities described above are listed in the Exhibit Index.

 Wells Fargo Bank, National
Association acts as trustee of the Arizona Grand Resort & Spa Mortgage
Loan. Pursuant to the pooling and servicing agreement for the CSAIL
2015-C3 Transaction, the trustee is required to provide an assessment of
compliance with applicable servicing criteria solely with respect to Item
1122(d)(2)(iii) of Regulation AB (regarding advances of funds or guarantees
regarding collections, cash flows or distributions, and any interest or other
fees charged for such advances, are made, reviewed and approved as specified in
the transaction agreements). However, during the reporting period, the trustee
did not perform any servicing function with respect to the servicing criteria
specified in Item 1122(d)(2)(iii) of Regulation AB. The master servicer
or the special servicer, to the extent required, performed the servicing
function identified with respect to Item 1122(d)(2)(iii) of Regulation AB, and
each such party included Item 1122(d)(2)(iii) of Regulation AB in the
assessment of compliance with applicable servicing criteria and accountant's
attestation report for the subject transaction. As a result, this Annual
Report on Form 10-K does not include an assessment of compliance with
applicable servicing criteria of the trustee. One or more other servicers of
the Arizona Grand Resort & Spa Mortgage Loan have delivered one or more
assessments of compliance with respect to Item 1122(d)(2)(iii) of Regulation
AB.

 Wilmington Trust, National
Association acts as trustee of the mortgage loans serviced under the
Pooling and Servicing Agreement. Pursuant to the Pooling and Servicing
Agreement, the trustee is required to provide an assessment of compliance with
applicable servicing criteria solely with respect to Item 1122(d)(2)(iii) of
Regulation AB (regarding advances of funds or guarantees regarding collections,
cash flows or distributions, and any interest or other fees charged for such
advances, are made, reviewed and approved as specified in the transaction
agreements). However, during the reporting period, the trustee did not perform
any servicing function with respect to the servicing criteria specified in Item
1122(d)(2)(iii) of Regulation AB. The master servicer or the special
servicer, to the extent required, performed the servicing function identified
with respect to Item 1122(d)(2)(iii) of Regulation AB, and each such party
included Item 1122(d)(2)(iii) of Regulation AB in the assessment of compliance
with applicable servicing criteria and accountant's attestation report for the
subject transaction. As a result, this Annual Report on Form 10-K does
not include an assessment of compliance with applicable servicing criteria of
the trustee. One or more other servicers of the mortgage loans serviced
under the Pooling and Servicing Agreement have delivered one or more
assessments of compliance with respect to Item 1122(d)(2)(iii) of Regulation
AB.

 This Annual Report on Form 10-K
includes assessments of compliance with applicable servicing criteria and
accountants' attestation reports from CoreLogic Solutions, LLC. This
entity was engaged by the master servicer under the Pooling and Servicing
Agreement to remit tax payments received from the escrow accounts of borrowers
to local taxing authorities, to report tax amounts due, to verify tax parcel
information, and to verify non-escrow tax payments. These servicing functions
are included within the servicing criteria set forth in Items 1122(d)(4)(xi)
and 1122(d)(4)(xii) of Regulation AB. Therefore, under the
principles-based definition of "servicer" set forth in Item 1101(j) of
Regulation AB that looks to the functions that an entity performs, this vendor
is a "servicer" for the purposes of Item 1122 of Regulation AB. See
Compliance and Disclosure Interpretations, Section 301.01 (Item 1101(j)).

 This Annual Report on Form 10-K
includes an assessment of compliance with applicable servicing criteria,
accountants' attestation report and servicer compliance statement from
Computershare Trust Company, National Association (" CTCNA "). CTCNA
was engaged by Wells Fargo Bank, National Association (" Wells Fargo "),
in its capacity as certificate administrator and custodian, to perform certain
specified servicing functions identified in the assessment of compliance with
applicable servicing criteria and accountants' attestation reports. Wells
Fargo engaged CTCNA in connection with the sale of Wells Fargo's corporate
trust services business to CTCNA and its affiliates. Further, under the
principles-based definition of "servicer" set forth in Item 1101(j) of
Regulation AB that looks to the functions that an entity performs, this party
is a "servicer" for the purposes of Item 1123 of Regulation AB. See
Compliance and Disclosure Interpretations, Section 301.01 (Item 1101(j)).

 The
assessment of compliance with applicable servicing criteria, accountants'
attestation report and servicer compliance statement of the certificate
administrator of the Arizona Grand Resort & Spa Mortgage Loan is omitted
from this Annual Report on Form 10-K as the certificate administrator pursuant
to the related pooling and servicing agreement or trust and servicing agreement
does not perform any activities that address servicing criteria with respect to
the issuing entity and because it is not a "servicer" that meets the criteria
in Item 1108(a)(2)(i) through (iii) of Regulation AB.

 With respect to the pari passu
loan combination that includes the Arizona Grand Resort & Spa Mortgage
Loan, (i) the report on assessment of compliance with servicing criteria and
attestation report on assessment of compliance with servicing criteria of
Rialto Capital Advisors, LLC as special servicer of the Arizona Grand Resort
& Spa Mortgage Loan, listed on the Exhibit Index are omitted from this
Annual Report on Form 10-K as they are not required to be included on this
Annual Report on Form 10-K per Instruction 3 to Item 1122 of Regulation AB
because it is a party performing activities that address servicing criteria
relating to 5% or less of the assets of the issuing entity; and (ii) the
servicer compliance statement of Rialto Capital Advisors, LLC as special
servicer of the Arizona Grand Resort & Spa Mortgage Loan, listed on the
Exhibit Index is omitted from this Annual Report on Form 10-K as it is not
required by Item 1123 of Regulation AB to be included on this Annual Report on
Form 10-K because it is an unaffiliated party that is not a "servicer" that
meets the criteria in Item 1108(a)(2)(i) through (iii) of Regulation AB.

 Item 1. Business.

 Item 1A. Risk Factors.

 Item 1B. Unresolved Staff Comments.

 None.

 Item 1C. Cybersecurity.

 Item 2. Properties.

 Item 3. Legal Proceedings.

 Item 4. Mine Safety Disclosures.

 Item 5. Market for Registrant's Common Equity,
Related Stockholder Matters and Issuer Purchases of Equity Securities.

 Item 6.

 [Reserved].

 Item 7. Management's Discussion and Analysis of
Financial Condition and Results of Operations.

 Item 7A. Quantitative and Qualitative Disclosures
About Market Risk.

 Item 8. Financial Statements and Supplementary Data.

 Item 9. Changes in and Disagreements With
Accountants on Accounting and Financial Disclosure.

 Item 9A. Controls and Procedures.

 Item 9B. Other Information.

 None.

 Item 9C. Disclosure Regarding Foreign Jurisdictions
that Prevent Inspections.

 None.

 Item 10. Directors, Executive Officers and Corporate
Governance.

 Item 11. Executive Compensation.

 Item 12. Security Ownership of Certain Beneficial
Owners and Management and Related Stockholder Matters.

 Item 13. Certain Relationships and Related
Transactions, and Director Independence.

 Item 14. Principal Accountant Fees and Services.

 ADDITIONAL DISCLOSURE ITEMS FOR REGULATION AB

 Item 1112(b) of Regulation AB, Significant Obligor
Financial Information.

 The Fairmont Orchid Mortgage Loan
(Loan # 1 on Annex A of the prospectus supplement of the registrant relating to
the issuing entity filed on November 25, 2015 pursuant to Rule 424(b)(5))
constitutes a significant obligor within the meaning of Item 1101(k)(2) of
Regulation AB as disclosed in the prospectus supplement. In accordance with
Item 1112(b) of Regulation AB, the most recent unaudited net operating income
of the significant obligor was $28,913,069.51 for the twelve- month period
ended December 31, 2023.

 Item 1114(b)(2) of Regulation AB, Significant Enhancement
Provider Financial Information.

 No entity or group of affiliated entities provides any external credit
enhancement or other support for the certificates within this transaction as
described under Item 1114(a) of Regulation AB.

 Item 1115(b) of Regulation AB, Certain Derivatives
Instruments (Financial Information).

 No entity or group of affiliated entities provides any
derivative instruments or other support for the certificates within this
transaction as described under Item 1115 of Regulation AB.

 Item 1117 of Regulation AB, Legal Proceedings.

 The registrant knows of no material pending legal proceeding
involving the trust or any party related to the trust, other than routine
litigation incidental to the duties of those respective parties, and the
following, with respect to Wells Fargo Bank, National Association, as trustee,
as certificate administrator and as custodian.

 In December 2014, Phoenix Light SF Limited (Phoenix Light)
and certain related entities filed a complaint in the United States District
Court for the Southern District of New York alleging claims against Wells Fargo
Bank, N.A., in its capacity as trustee for a number of residential
mortgage-backed securities (RMBS) trusts. Complaints raising similar
allegations have been filed by Commerzbank AG in the Southern District of New
York, IKB International and IKB Deutsche Industriebank (together, IKB) in New
York state court, and Park Royal I LLC and Park Royal II LLC in New York state
court. In each case, the plaintiffs allege that Wells Fargo Bank, N.A., as
trustee, caused losses to investors, and plaintiffs assert causes of action
based upon, among other things, the trustee's alleged failure to notify and
enforce repurchase obligations of mortgage loan sellers for purported breaches
of representations and warranties, notify investors of alleged events of
default, and abide by appropriate standards of care following alleged events of
default. In July 2022, the district court dismissed Phoenix Light's claims and
certain of the claims asserted by Commerzbank AG, and subsequently entered
judgment in each case in favor of Wells Fargo Bank, N.A. In August 2022,
Phoenix Light and Commerzbank AG each appealed the district court's decision to
the United States Court of Appeals for the Second Circuit. Phoenix Light
dismissed its appeal in May 2023, terminating its case. In November 2023, Wells
Fargo Bank, N.A. entered into an agreement with IKB to resolve IKB's claims.
Wells Fargo Bank, N.A. previously settled two class actions filed by
institutional investors and an action filed by the National Credit Union
Administration with similar allegations.

 Item 1119 of Regulation AB, Affiliations and Certain
Relationships and Related Transactions.

 The information regarding this Item has been previously
provided in a prospectus supplement of the Registrant relating to the issuing
entity filed on November 25, 2015 pursuant to Rule 424(b)(5).

 Item 1122 of Regulation AB, Compliance with Applicable
Servicing Criteria.

 The reports on assessments of compliance with the servicing
criteria for asset-backed securities and related attestation reports on such
assessments of compliance with respect to the mortgage loans are attached
hereto under Item 15 to this Annual Report on Form 10-K. Attached as Exhibit O
to the Pooling and Servicing Agreement incorporated by reference as Exhibit 4.1
to this Annual Report on Form 10-K is a chart identifying the entities
participating in a servicing function for the transaction responsible for each
applicable servicing criteria set forth in Item 1122(d).

 The reports on assessments of compliance with the servicing
criteria for asset-backed securities and related attestation reports on such
assessments of compliance with respect to the Arizona Grand Resort & Spa
Mortgage Loan, which is being serviced and administered pursuant to the pooling
and servicing agreement for the CSAIL 2015-C3 Transaction, are attached hereto
under Item 15 to this Annual Report on Form 10-K. Attached as Exhibit O to the
pooling and servicing agreement for the CSAIL 2015-C3 Transaction incorporated
by reference as Exhibit 4.2 to this Annual Report on Form 10-K is a chart
identifying the entities participating in a servicing function for the CSAIL
2015-C3 Transaction responsible for each applicable servicing criteria set
forth in Item 1122(d).

 Item 1123 of Regulation AB, Servicer Compliance Statement.

 The servicer compliance statements are attached as Exhibits
to this Annual Report on Form 10-K.

 Item 15. Exhibit and Financial Statement Schedules.

 (a) The following is a list of documents filed as part of this
Annual Report on Form 10-K:

 (1) Not applicable

 (2) Not applicable

 (3) See below

 4.1
 Pooling and Servicing Agreement, dated as of November 1,
2015, by and among Credit Suisse First Boston Mortgage Securities Corp., as
Depositor, Wells Fargo Bank, National Association, as Master Servicer, Midland
Loan Services, a Division of PNC Bank, National Association, as Special Servicer,
Pentalpha Surveillance LLC, as Operating Advisor, Wells Fargo Bank, National
Association, as Certificate Administrator and Wilmington Trust, National
Association, as Trustee (filed as Exhibit 4.1 to the registrant's Current
Report on Form 8-K filed on November 25, 2015 under Commission File No.

 4.2
 Pooling and Servicing Agreement, dated as of August 1,
2015, by and among Credit Suisse First Boston Mortgage Securities Corp., as
Depositor, Midland Loan Services, a Division of PNC Bank, National Association,
as Master Servicer, Rialto Capital Advisors, LLC, as Special Servicer,
Pentalpha Surveillance LLC, as Operating Advisor, Wells Fargo Bank, National
Association, as Certificate Administrator and Wells Fargo Bank, National
Association, as Trustee (filed as Exhibit 4.2 to the registrant's Current
Report on Form 8-K filed on November 25, 2015 under Commission File No.

 4.3
 Co-Lender Agreement, dated as of August 18, 2015, by and
among Column Financial, Inc., as Initial Note A-1 Holder and Column Financial,
Inc., as Initial Note A-2 Holder (filed as Exhibit 4.3 to the registrant's
Current Report on Form 8-K filed on November 25, 2015 under Commission File No.

 Rule 13a-14(d)/15d-14(d) Certifications.

Reports on assessment of compliance with servicing criteria for asset-backed
securities.

 33.1
 Wells Fargo Bank, National Association, as Master
Servicer

 33.2
National Association, as Special Servicer

 33.3
Wilmington Trust, National Association, as Trustee (Omitted. See Explanatory
Notes.)

 33.4
Certificate Administrator

 33.5
Custodian

 33.6
 Pentalpha Surveillance LLC, as Operating Advisor

 33.7
 CoreLogic Solutions, LLC, as Servicing Function
Participant

 33.8
as Servicing Function Participant for the Certificate Administrator

 33.9
as Servicing Function Participant for the Custodian

 33.10
National Association, as Primary Servicer of the Arizona Grand Resort & Spa
Mortgage Loan (see Exhibit 33.2)

 33.11
Rialto Capital Advisors, LLC, as Special Servicer of the Arizona Grand Resort

 33.12
Wells Fargo Bank, National Association, as Trustee of the Arizona Grand Resort

 33.13
Custodian of the Arizona Grand Resort & Spa Mortgage Loan (see Exhibit
33.5)

 33.14
 Pentalpha Surveillance LLC, as Operating Advisor of
the Arizona Grand Resort & Spa Mortgage Loan (see Exhibit 33.6)

 33.15
as Servicing Function Participant for the Custodian (see Exhibit 33.9)

 Attestation
reports on assessment of compliance with servicing criteria for asset-backed
securities.

 34.1
 Wells Fargo Bank, National Association, as Master
Servicer

 34.2
National Association, as Special Servicer

 34.3
Wilmington Trust, National Association, as Trustee (Omitted. See Explanatory
Notes.)

 34.4
Certificate Administrator

 34.5
Custodian

 34.6
 Pentalpha Surveillance LLC, as Operating Advisor

 34.7
 CoreLogic Solutions, LLC, as Servicing Function
Participant

 34.8
as Servicing Function Participant for the Certificate Administrator

 34.9
as Servicing Function Participant for the Custodian

 34.10
National Association, as Primary Servicer of the Arizona Grand Resort & Spa
Mortgage Loan (see Exhibit 34.2)

 34.11
Rialto Capital Advisors, LLC, as Special Servicer of the Arizona Grand Resort

 34.12
Wells Fargo Bank, National Association, as Trustee of the Arizona Grand Resort

 34.13
Custodian of the Arizona Grand Resort & Spa Mortgage Loan (see Exhibit
34.5)

 34.14
 Pentalpha Surveillance LLC, as Operating Advisor of
the Arizona Grand Resort & Spa Mortgage Loan (see Exhibit 34.6)

 34.15
as Servicing Function Participant for the Custodian (see Exhibit 34.9)

Servicer compliance statements.

 35.1
 Wells Fargo Bank, National Association, as Master
Servicer

 35.2
National Association, as Special Servicer

 35.3
Certificate Administrator

 35.4
as Servicing Function Participant for the Certificate Administrator

 35.5
National Association, as Primary Servicer of the Arizona Grand Resort & Spa
Mortgage Loan (see Exhibit 35.2)

 35.6
Rialto Capital Advisors, LLC, as Special Servicer of the Arizona Grand Resort

 99.1 Mortgage Loan Purchase Agreement, dated as of November 1,
2015, between Credit Suisse First Boston Mortgage Securities Corp. and Column
Financial, Inc. (filed as Exhibit 99.1 to the registrant's Current Report on
Form 8-K filed on November 25, 2015 under Commission File No. 333-206703-01 and
incorporated by reference herein)

 99.2 Mortgage Loan Purchase Agreement, dated as of November 1,
2015, between Credit Suisse First Boston Mortgage Securities Corp. and Benefit
Street Partners CRE Finance LLC (filed as Exhibit 99.2 to the registrant's
Current Report on Form 8-K filed on November 25, 2015 under Commission File No.

 99.3 Mortgage Loan Purchase Agreement, dated as of November 1,
2015, among Credit Suisse First Boston Mortgage Securities Corp., Walker &
Dunlop Commercial Property Funding I CS, LLC and Walker & Dunlop Commercial
Property Funding, LLC (filed as Exhibit 99.3 to the registrant's Current Report
on Form 8-K filed on November 25, 2015 under Commission File No. 333-206703-01
and incorporated by reference herein)

 99.4 Mortgage Loan Purchase Agreement, dated as of November 1,
2015, between Credit Suisse First Boston Mortgage Securities Corp. and The
Bancorp Bank (filed as Exhibit 99.4 to the registrant's Current Report on Form
8-K filed on November 25, 2015 under Commission File No. 333-206703-01 and
incorporated by reference herein)

 99.5 Mortgage Loan Purchase Agreement, dated as of November 1,
2015, between Credit Suisse First Boston Mortgage Securities Corp. and MC-Five
Mile Commercial Mortgage Finance LLC (filed as Exhibit 99.5 to the registrant's
Current Report on Form 8-K filed on November 25, 2015 under Commission File No.

 (b) The exhibits required to be filed by the
Registrant pursuant to Item 601 of Regulation S-K are listed above.

 (c) Not Applicable.

 SIGNATURES

 Pursuant to the requirements of Section 13 or 15(d) of the
Securities Exchange Act of 1934, the registrant has duly caused this report to
be signed on its behalf by the undersigned, thereunto duly authorized.

 Credit Suisse First Boston Mortgage
Securities Corp.

(Depositor)

 /s/ Lawrence
Chun

 Lawrence
Chun, Authorized Signatory

 (senior officer in charge of
securitization of the depositor)

 Date: March 15, 2024