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





I,
Helaine M. Kaplan, 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
DBJPM 2020-C9 Mortgage Trust (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:



Midland
Loan Services, a Division of PNC Bank, National Association, as Master
Servicer, CWCapital Asset Management LLC, as Special Servicer, Wells Fargo
Bank, National Association, as Trustee and Certificate Administrator, Wells
Fargo Bank, National Association, as Custodian, Park Bridge Lender Services
LLC, as Operating Advisor, 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, KeyBank National Association, as Primary
Servicer for the 1633 Broadway Mortgage Loan, Situs Holdings, LLC, as Special
Servicer for the 1633 Broadway Mortgage Loan, Wells Fargo Bank, National
Association, as Trustee for the 1633 Broadway Mortgage Loan, Wells Fargo Bank,
National Association, as Custodian for the 1633 Broadway Mortgage Loan,
Pentalpha Surveillance LLC, as Operating Advisor for the 1633 Broadway Mortgage
Loan, Computershare Trust Company, National Association, as Servicing Function
Participant for the Custodian for the 1633 Broadway Mortgage Loan, Midland Loan
Services, a Division of PNC Bank, National Association, as Primary Servicer for
the Southcenter Mall Mortgage Loan, Midland Loan Services, a Division of PNC
Bank, National Association, as Special Servicer for the Southcenter Mall
Mortgage Loan prior to May 10, 2023, K-Star Asset Management, as Special
Servicer for the Southcenter Mall Mortgage Loan on and after May 10, 2023,
Wells Fargo Bank, National Association, as Trustee for the Southcenter Mall
Mortgage Loan, Wells Fargo Bank, National Association, as Custodian for the
Southcenter Mall Mortgage Loan, Pentalpha Surveillance LLC, as Operating
Advisor for the Southcenter Mall Mortgage Loan, Computershare Trust Company,
National Association, as Servicing Function Participant for the Custodian for the
Southcenter Mall Mortgage Loan, Midland Loan Services, a Division of PNC Bank,
National Association, as Primary Servicer for the Kings Plaza Mortgage Loan,
Midland Loan Services, a Division of PNC Bank, National Association, as Special
Servicer for the Kings Plaza Mortgage Loan prior to April 27, 2023, K-Star
Asset Management LLC, as Special Servicer for the Kings Plaza Mortgage Loan on
and after April 27, 2023, Wells Fargo Bank, National Association, as Trustee
for the Kings Plaza Mortgage Loan, Wells Fargo Bank, National Association, as
Custodian for the Kings Plaza Mortgage Loan, Pentalpha Surveillance LLC, as
Operating Advisor for the Kings Plaza Mortgage Loan, Computershare Trust
Company, National Association, as Servicing Function Participant for the
Custodian for the Kings Plaza Mortgage Loan, KeyBank National Association, as
Primary Servicer for the MGM Grand & Mandalay Bay Mortgage Loan, Situs
Holdings, LLC, as Special Servicer for the MGM Grand & Mandalay Bay
Mortgage Loan, Wilmington Trust, National Association, as Trustee for the MGM
Grand & Mandalay Bay Mortgage Loan, Citibank, N.A., as Custodian for the
MGM Grand & Mandalay Bay Mortgage Loan, U.S. Bank National Association, as
Servicing Function Participant for the MGM Grand & Mandalay Bay Mortgage
Loan, Wells Fargo Bank, National Association, as Primary Servicer for the 711
Fifth Avenue Mortgage Loan, KeyBank National Association, as Special Servicer
for the 711 Fifth Avenue Mortgage Loan, Wilmington Trust, National Association,
as Trustee for the 711 Fifth Avenue Mortgage Loan, Wells Fargo Bank, National
Association, as Custodian for the 711 Fifth Avenue Mortgage Loan, Park Bridge
Lender Services LLC, as Operating Advisor for the 711 Fifth Avenue Mortgage
Loan, CoreLogic Solutions, LLC, as Servicing Function Participant for the 711
Fifth Avenue Mortgage Loan, Computershare Trust Company, National Association,
as Servicing Function Participant for the Custodian for the 711 Fifth Avenue
Mortgage Loan, Midland Loan Services, a Division of PNC Bank, National
Association, as Primary Servicer for the Chase Center Tower II Mortgage Loan,
Midland Loan Services, a Division of PNC Bank, National Association, as Special
Servicer for the Chase Center Tower II Mortgage Loan, Wells Fargo Bank,
National Association, as Trustee for the Chase Center Tower II Mortgage Loan,
Wells Fargo Bank, National Association, as Custodian for the Chase Center Tower
II Mortgage Loan, Computershare Trust Company, National Association, as
Servicing Function Participant for the Custodian for the Chase Center Tower II
Mortgage Loan, Midland Loan Services, a Division of PNC Bank, National
Association, as Primary Servicer for the Chase Center Tower I Mortgage Loan,
Midland Loan Services, a Division of PNC Bank, National Association, as Special
Servicer for the Chase Center Tower I Mortgage Loan, Wells Fargo Bank, National
Association, as Trustee for the Chase Center Tower I Mortgage Loan, Wells Fargo
Bank, National Association, as Custodian for the Chase Center Tower I Mortgage
Loan, Computershare Trust Company, National Association, as Servicing Function
Participant for the Custodian for the Chase Center Tower I Mortgage Loan,
Midland Loan Services, a Division of PNC Bank, National Association, as Primary
Servicer for the BX Industrial Portfolio Mortgage Loan, Situs Holdings, LLC, as
Special Servicer for the BX Industrial Portfolio Mortgage Loan, Wells Fargo
Bank, National Association, as Trustee for the BX Industrial Portfolio Mortgage
Loan, Wells Fargo Bank, National Association, as Custodian for the BX
Industrial Portfolio Mortgage Loan, Computershare Trust Company, National
Association, as Servicing Function Participant for the Custodian for the BX
Industrial Portfolio Mortgage Loan, Midland Loan Services, a Division of PNC
Bank, National Association, as Primary Servicer for the 675 Creekside Way
Mortgage Loan, Midland Loan Services, a Division of PNC Bank, National
Association, as Special Servicer for the 675 Creekside Way Mortgage Loan, Wells
Fargo Bank, National Association, as Trustee for the 675 Creekside Way Mortgage
Loan, Wells Fargo Bank, National Association, as Custodian for the 675
Creekside Way Mortgage Loan, Pentalpha Surveillance LLC, as Operating Advisor
for the 675 Creekside Way Mortgage Loan, Computershare Trust Company, National
Association, as Servicing Function Participant for the Custodian for the 675
Creekside Way Mortgage Loan, Midland Loan Services, a Division of PNC Bank,
National Association, as Primary Servicer for the Agellan Portfolio Mortgage
Loan, Midland Loan Services, a Division of PNC Bank, National Association, as
Special Servicer for the Agellan Portfolio Mortgage Loan, Wells Fargo Bank,
National Association, as Trustee for the Agellan Portfolio Mortgage Loan, Wells
Fargo Bank, National Association, as Custodian for the Agellan Portfolio
Mortgage Loan, Park Bridge Lender Services LLC, as Operating Advisor for the
Agellan Portfolio Mortgage Loan, Computershare Trust Company, National
Association, as Servicing Function Participant for the Custodian for the
Agellan Portfolio Mortgage Loan, Midland Loan Services, a Division of PNC Bank,
National Association, as Primary Servicer for the 420 Taylor Street Mortgage
Loan, LNR Partners, LLC, as Special Servicer for the 420 Taylor Street Mortgage
Loan, Wells Fargo Bank, National Association, as Trustee for the 420 Taylor
Street Mortgage Loan, Wells Fargo Bank, National Association, as Custodian for
the 420 Taylor Street Mortgage Loan, Park Bridge Lender Services LLC, as
Operating Advisor for the 420 Taylor Street Mortgage Loan, Computershare Trust
Company, National Association, as Servicing Function Participant for the
Custodian for the 420 Taylor Street Mortgage Loan, Midland Loan Services, a
Division of PNC Bank, National Association, as Primary Servicer for the 3000
Post Oak Mortgage Loan, LNR Partners, LLC, as Special Servicer for the 3000
Post Oak Mortgage Loan, Wells Fargo Bank, National Association, as Trustee for
the 3000 Post Oak Mortgage Loan, Wells Fargo Bank, National Association, as
Custodian for the 3000 Post Oak Mortgage Loan, Park Bridge Lender Services LLC,
as Operating Advisor for the 3000 Post Oak Mortgage Loan, Computershare Trust
Company, National Association, as Servicing Function Participant for the
Custodian for the 3000 Post Oak Mortgage Loan, Midland Loan Services, a
Division of PNC Bank, National Association, as Primary Servicer for the 280
North Bernardo Mortgage Loan, LNR Partners, LLC, as Special Servicer for the
280 North Bernardo Mortgage Loan, Wells Fargo Bank, National Association, as
Trustee for the 280 North Bernardo Mortgage Loan, Wells Fargo Bank, National
Association, as Custodian for the 280 North Bernardo Mortgage Loan, Park Bridge
Lender Services LLC, as Operating Advisor for the 280 North Bernardo Mortgage
Loan, Computershare Trust Company, National Association, as Servicing Function
Participant for the Custodian for the 280 North Bernardo Mortgage Loan, Wells
Fargo Bank, National Association, as Primary Servicer for The Liz Mortgage
Loan, Midland Loan Services, a Division of PNC Bank, National Association, as
Special Servicer for The Liz Mortgage Loan prior to May 2, 2023, K-Star Asset
Management LLC, as Special Servicer for The Liz Mortgage Loan on and after May
2, 2023, Wilmington Trust, National Association, as Trustee for The Liz
Mortgage Loan, Wells Fargo Bank, National Association, as Custodian for The Liz
Mortgage Loan, Park Bridge Lender Services LLC, as Operating Advisor for The
Liz Mortgage Loan, CoreLogic Solutions, LLC, as Servicing Function Participant
for The Liz Mortgage Loan, Computershare Trust Company, National Association,
as Servicing Function Participant for the Custodian for The Liz Mortgage Loan,
Midland Loan Services, a Division of PNC Bank, National Association, as Primary
Servicer for the Brass Professional Center Mortgage Loan, LNR Partners, LLC, as
Special Servicer for the Brass Professional Center Mortgage Loan, Wells Fargo
Bank, National Association, as Trustee for the Brass Professional Center
Mortgage Loan, Wells Fargo Bank, National Association, as Custodian for the
Brass Professional Center Mortgage Loan, Park Bridge Lender Services LLC, as
Operating Advisor for the Brass Professional Center Mortgage Loan,
Computershare Trust Company, National Association, as Servicing Function
Participant for the Custodian for the Brass Professional Center Mortgage Loan,
Midland Loan Services, a Division of PNC Bank, National Association, as Primary
Servicer for the Amazon Industrial Portfolio Mortgage Loan, Rialto Capital
Advisors, LLC, as Special Servicer for the Amazon Industrial Portfolio Mortgage
Loan, Wilmington Trust, National Association, as Trustee for the Amazon
Industrial Portfolio Mortgage Loan, Citibank, N.A., as Custodian for the Amazon
Industrial Portfolio Mortgage Loan, Pentalpha Surveillance LLC, as Operating
Advisor for the Amazon Industrial Portfolio Mortgage Loan, U.S. Bank National
Association, as Servicing Function Participant for the Amazon Industrial
Portfolio Mortgage Loan, Midland Loan Services, a Division of PNC Bank,
National Association, as Primary Servicer for the Coleman Highline Mortgage
Loan, Rialto Capital Advisors, LLC, as Special Servicer for the Coleman
Highline Mortgage Loan, Wilmington Trust, National Association, as Trustee for
the Coleman Highline Mortgage Loan, Citibank, N.A., as Custodian for the
Coleman Highline Mortgage Loan, Pentalpha Surveillance LLC, as Operating
Advisor for the Coleman Highline Mortgage Loan, U.S. Bank National Association,
as Servicing Function Participant for the Coleman Highline Mortgage Loan, Midland
Loan Services, a Division of PNC Bank, National Association, as Primary
Servicer for the 333 South Wabash Mortgage Loan, Rialto Capital Advisors, LLC,
as Special Servicer for the 333 South Wabash Mortgage Loan, Wilmington Trust,
National Association, as Trustee for the 333 South Wabash Mortgage Loan,
Citibank, N.A., as Custodian for the 333 South Wabash Mortgage Loan, Pentalpha
Surveillance LLC, as Operating Advisor for the 333 South Wabash Mortgage Loan,
and U.S. Bank National Association, as Servicing Function Participant for the
333 South Wabash Mortgage Loan.





Dated:
March 15, 2024





/s/
Helaine M. Kaplan

Helaine
M. Kaplan

President

(senior
officer in charge of securitization of the depositor)