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, 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, 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, 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 13, 2023





/s/ Helaine M. Kaplan

Helaine M. Kaplan

President

(senior
officer in charge of securitization of the depositor)