EX-31
Rule 13a-14(d)/15d-14(d) Certifications.





I,
Kunal K. Singh, certify that:



1. I
have reviewed this report on Form 10-K and all reports on Form 10-D required to
be filed in respect of the period covered by this report on Form 10-K of the
JPMDB Commercial Mortgage Securities Trust 2017-C5 (the "Exchange Act
periodic reports");



2.
Based on my knowledge, the Exchange Act periodic reports, taken as a whole, do
not contain any untrue statement of a material fact or omit to state a material
fact necessary to make the statements made, in light of the circumstances under
which such statements were made, not misleading with respect to the period
covered by this report;



3.
Based on my knowledge, all of the distribution, servicing and other information
required to be provided under Form 10-D for the period covered by this report
is included in the Exchange Act periodic reports;



4.
Based on my knowledge and the servicer compliance statements required in this
report under Item 1123 of Regulation AB, and except as disclosed in the
Exchange Act periodic reports, the servicers have fulfilled their obligations
under the servicing agreements in all material respects; and



5. All
of the reports on assessment of compliance with servicing criteria for
asset-backed securities and their related attestation reports on assessment of
compliance with servicing criteria for asset-backed securities required to be
included in this report in accordance with Item 1122 of Regulation AB and
Exchange Act Rules 13a-18 and 15d-18 have been included as an exhibit to this
report, except as otherwise disclosed in this report. Any material instances of
noncompliance described in such reports have been disclosed in this report on
Form 10-K.



In
giving the certifications above, I have reasonably relied on information
provided to me by the following unaffiliated parties:



Wells
Fargo Bank, National Association, as Master Servicer, CWCapital Asset Management
LLC, as Special Servicer, Wilmington Trust, National Association, as Trustee,
Wells Fargo Bank, National Association, as Certificate Administrator, Wells
Fargo Bank, National Association, as Custodian, Park Bridge Lender Services
LLC, as Operating Advisor, CoreLogic Solutions, LLC., as Servicing Function
Participant, Computershare Trust Company, National Association, as Servicing
Function Participant for the Certificate Administrator, Computershare Trust
Company, National Association, as Servicing Function Participant for the
Custodian, Wells Fargo Bank, National Association, as Primary Servicer for the
Prudential Plaza Mortgage Loan, CWCapital Asset Management LLC, as Special
Servicer for the Prudential Plaza Mortgage Loan, Wilmington Trust, National Association,
as Trustee for the Prudential Plaza Mortgage Loan, Wells Fargo Bank, National
Association, as Custodian for the Prudential Plaza Mortgage Loan, Park Bridge
Lender Services LLC, as Senior Trust Advisor for the Prudential Plaza Mortgage
Loan, CoreLogic Solutions, LLC., as Servicing Function Participant for the
Prudential Plaza Mortgage Loan, Computershare Trust Company, National
Association, as Servicing Function Participant for the Custodian for the
Prudential Plaza Mortgage Loan, Wells Fargo Bank, National Association, as
Primary Servicer for the Hilton Hawaiian Village Mortgage Loan, CWCapital Asset
Management LLC, as Special Servicer for the Hilton Hawaiian Village Mortgage
Loan, Wilmington Trust, National Association, as Trustee for the Hilton Hawaiian
Village Mortgage Loan, Wells Fargo Bank, National Association, as Custodian for
the Hilton Hawaiian Village Mortgage Loan, CoreLogic Solutions, LLC, as
Servicing Function Participant for the Hilton Hawaiian Village Mortgage Loan,
Computershare Trust Company, National Association, as Servicing Function
Participant for the Custodian for the Hilton Hawaiian Village Mortgage Loan,
Wells Fargo Bank, National Association, as Primary Servicer for the 229 West
43rd Street Retail Condo Mortgage Loan, KeyBank National Association, as
Special Servicer for the 229 West 43rd Street Retail Condo Mortgage Loan,
Wilmington Trust, National Association, as Trustee for the 229 West 43rd Street
Retail Condo Mortgage Loan, Wells Fargo Bank, National Association, as Custodian
for the 229 West 43rd Street Retail Condo Mortgage Loan, Park Bridge Lender
Services LLC, as Operating Advisor for the 229 West 43rd Street Retail Condo
Mortgage Loan, CoreLogic Solutions, LLC, as Servicing Function Participant for
the 229 West 43rd Street Retail Condo Mortgage Loan, Computershare Trust
Company, National Association, as Servicing Function Participant for the
Custodian for the 229 West 43rd Street Retail Condo Mortgage Loan, Wells Fargo
Bank, National Association, as Primary Servicer for the Summit Mall Mortgage
Loan, LNR Partners, LLC, as Special Servicer for the Summit Mall Mortgage Loan,
Wilmington Trust, National Association, as Trustee for the Summit Mall Mortgage
Loan, Wells Fargo Bank, National Association, as Custodian for the Summit Mall
Mortgage Loan, Pentalpha Surveillance LLC, as Operating Advisor for the Summit
Mall Mortgage Loan, CoreLogic Solutions, LLC, as Servicing Function Participant
for the Summit Mall Mortgage Loan, Computershare Trust Company, National
Association, as Servicing Function Participant for the Custodian for the Summit
Mall Mortgage Loan, Wells Fargo Bank, National Association, as Primary Servicer
for the Moffett Gateway Mortgage Loan, LNR Partners, LLC, as Special Servicer
for the Moffett Gateway Mortgage Loan, Wilmington Trust, National Association,
as Trustee for the Moffett Gateway Mortgage Loan, Wells Fargo Bank, National
Association, as Custodian for the Moffett Gateway Mortgage Loan, Pentalpha
Surveillance LLC, as Operating Advisor for the Moffett Gateway Mortgage Loan,
CoreLogic Solutions, LLC., as Servicing Function Participant for the Moffett
Gateway Mortgage Loan, Computershare Trust Company, National Association, as
Servicing Function Participant for the Custodian for the Moffett Gateway Mortgage
Loan, Wells Fargo Bank, National Association, as Primary Servicer for the
Dick's Sporting Goods Portfolio Mortgage Loan, LNR Partners, LLC, as Special
Servicer for the Dick's Sporting Goods Portfolio Mortgage Loan, Wilmington
Trust, National Association, as Trustee for the Dick's Sporting Goods Portfolio
Mortgage Loan, Wells Fargo Bank, National Association, as Custodian for the
Dick's Sporting Goods Portfolio Mortgage Loan, Pentalpha Surveillance LLC, as
Operating Advisor for the Dick's Sporting Goods Portfolio Mortgage Loan,
CoreLogic Solutions, LLC., as Servicing Function Participant for the Dick's
Sporting Goods Portfolio Mortgage Loan, Computershare Trust Company, National
Association, as Servicing Function Participant for the Custodian for the Dick's
Sporting Goods Portfolio Mortgage Loan, Midland Loan Services, a Division of
PNC Bank, National Association, as Primary Servicer for the 350 Park Avenue
Mortgage Loan, CWCapital Asset Management LLC, as Special Servicer for the 350
Park Avenue Mortgage Loan, Wells Fargo Bank, National Association, as Trustee
for the 350 Park Avenue Mortgage Loan, Wells Fargo Bank, National Association,
as Custodian for the 350 Park Avenue Mortgage Loan, Computershare Trust
Company, National Association, as Servicing Function Participant for the
Custodian for the 350 Park Avenue Mortgage Loan, Midland Loan Services, a
Division of PNC Bank, National Association, as Primary Servicer for the Summit
Place Wisconsin Mortgage Loan, Midland Loan Services, a Division of PNC Bank, National
Association, as Special Servicer for the Summit Place Wisconsin Mortgage Loan
prior to May 5, 2023, K-Star Asset Management LLC, as Special Servicer for the
Summit Place Wisconsin Mortgage Loan on and after May 5, 2023, Wells Fargo
Bank, National Association, as Trustee for the Summit Place Wisconsin Mortgage
Loan, Wells Fargo Bank, National Association, as Custodian for the Summit Place
Wisconsin Mortgage Loan, Park Bridge Lender Services LLC, as Operating Advisor
for the Summit Place Wisconsin Mortgage Loan, Computershare Trust Company,
National Association, as Servicing Function Participant for the Custodian for
the Summit Place Wisconsin Mortgage Loan, Midland Loan Services, a Division of
PNC Bank, National Association, as Primary Servicer for the Dallas Design
District Mortgage Loan, LNR Partners, LLC, as Special Servicer for the Dallas
Design District Mortgage Loan, Wells Fargo Bank, National Association, as
Trustee for the Dallas Design District Mortgage Loan, Wells Fargo Bank,
National Association, as Custodian for the Dallas Design District Mortgage
Loan, Pentalpha Surveillance LLC, as Operating Advisor for the Dallas Design
District Mortgage Loan, Computershare Trust Company, National Association, as
Servicing Function Participant for the Custodian for the Dallas Design District
Mortgage Loan, Midland Loan Services, a Division of PNC Bank, National
Association, as Primary Servicer for the Landmark Square Mortgage Loan, LNR
Partners, LLC, as Special Servicer for the Landmark Square Mortgage Loan, Wells
Fargo Bank, National Association, as Trustee for the Landmark Square Mortgage
Loan, Wells Fargo Bank, National Association, as Custodian for the Landmark
Square Mortgage Loan, Pentalpha Surveillance LLC, as Operating Advisor for the
Landmark Square Mortgage Loan, Computershare Trust Company, National
Association, as Servicing Function Participant for the Custodian for the
Landmark Square Mortgage Loan, Wells Fargo Bank, National Association, as
Primary Servicer for the Key Center Cleveland Mortgage Loan, Rialto Capital
Advisors, LLC, as Special Servicer for the Key Center Cleveland Mortgage Loan,
Deutsche Bank Trust Company Americas, as Trustee for the Key Center Cleveland
Mortgage Loan, Deutsche Bank Trust Company Americas, as Custodian for the Key Center
Cleveland Mortgage Loan, Park Bridge Lender Services LLC, as Operating Advisor
for the Key Center Cleveland Mortgage Loan, CoreLogic Solutions, LLC, as
Servicing Function Participant for the Key Center Cleveland Mortgage Loan,
Midland Loan Services, a Division of PNC Bank, National Association, as Primary
Servicer for the Uovo Art Storage Mortgage Loan, Rialto Capital Advisors, LLC,
as Special Servicer for the Uovo Art Storage Mortgage Loan, Wells Fargo Bank,
National Association, as Trustee for the Uovo Art Storage Mortgage Loan, Wells
Fargo Bank, National Association, as Custodian for the Uovo Art Storage
Mortgage Loan, Park Bridge Lender Services LLC, as Operating Advisor for the
Uovo Art Storage Mortgage Loan, and Computershare Trust Company, National
Association, as Servicing Function Participant for the Custodian for the Uovo
Art Mortgage Loan.





Dated:
March 15, 2024





/s/
Kunal K. Singh

Kunal
K. Singh

President
and Chief Executive Officer

(senior
officer in charge of securitization of the depositor)