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
Benchmark 2020-IG1 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, Midland Loan Services, a Division of PNC Bank, National Association,
as Special Servicer, Wells Fargo Bank, National Association, as Trustee and
Certificate Administrator, Wells Fargo Bank, National Association, as
Custodian, 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 Bellagio
Hotel and Casino Mortgage Loan, Situs Holdings, LLC, as Special Servicer for
the Bellagio Hotel and Casino Mortgage Loan, Wells Fargo Bank, National
Association, as Trustee for the Bellagio Hotel and Casino Mortgage Loan, Wells
Fargo Bank, National Association, as Custodian for the Bellagio Hotel and
Casino Mortgage Loan, Park Bridge Lender Services LLC, as Operating Advisor for
the Bellagio Hotel and Casino Mortgage Loan, Computershare Trust Company,
National Association, as Servicing Function Participant for the Custodian for
the Bellagio Hotel and Casino Mortgage Loan, KeyBank National Association, as
Primary Servicer for the 650 Madison Avenue Mortgage Loan, LNR Partners, LLC,
as Special Servicer for the 650 Madison Avenue Mortgage Loan prior to September
18, 2023, 3650 REIT Loan Servicing LLC, as Special Servicer for the 650 Madison
Avenue Mortgage Loan on and after September 18, 2023, Wilmington Trust,
National Association, as Trustee for the 650 Madison Avenue Mortgage Loan,
Citibank, N.A., as Custodian for the 650 Madison Avenue Mortgage Loan, U.S.
Bank National Association, as Servicing Function Participant for the 650
Madison Avenue Mortgage Loan, Wells Fargo Bank, National Association, as
Primary Servicer for the 55 Hudson Yards Mortgage Loan, CWCapital Asset
Management LLC, as Special Servicer for the 55 Hudson Yards Mortgage Loan,
Wilmington Trust, National Association, as Trustee for the 55 Hudson Yards
Mortgage Loan, Wells Fargo Bank, National Association, as Custodian for the 55
Hudson Yards Mortgage Loan, CoreLogic Solutions, LLC, as Servicing Function
Participant for the 55 Hudson Yards Mortgage Loan, Computershare Trust Company,
National Association, as Servicing Function Participant for the Custodian for
the 55 Hudson Yards Mortgage Loan, KeyBank National Association, as Primary
Servicer for the Parkmerced Mortgage Loan, KeyBank National Association, as
Special Servicer for the Parkmerced Mortgage Loan, Wells Fargo Bank, National
Association, as Trustee for the Parkmerced Mortgage Loan, Wells Fargo Bank,
National Association, as Custodian for the Parkmerced Mortgage Loan, Park
Bridge Lender Services LLC, as Operating Advisor for the Parkmerced Mortgage
Loan, Computershare Trust Company, National Association, as Servicing Function
Participant for the Custodian for the Parkmerced Mortgage Loan, Wells Fargo
Bank, National Association, as Primary Servicer for the 805 Third Avenue
Mortgage Loan, BREF Partners Special Servicer LLC, as Special Servicer for the
805 Third Avenue Mortgage Loan, Wilmington Trust, National Association, as
Trustee for the 805 Third Avenue Mortgage Loan, Citibank, N.A., as Custodian
for the 805 Third Avenue Mortgage Loan, Pentalpha Surveillance LLC, as
Operating Advisor for the 805 Third Avenue Mortgage Loan, CoreLogic Solutions, LLC,
as Servicing Function Participant for the 805 Third Avenue Mortgage Loan, U.S.
Bank National Association, as Servicing Function Participant for the 805 Third
Avenue Mortgage Loan, 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 LLC, 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 Starwood Industrial Portfolio Mortgage
Loan, CWCapital Asset Management LLC, as Special Servicer for the Starwood
Industrial Portfolio Mortgage Loan, Wells Fargo Bank, National Association, as
Trustee for the Starwood Industrial Portfolio Mortgage Loan, Wells Fargo Bank,
National Association, as Custodian for the Starwood Industrial Portfolio
Mortgage Loan, Pentalpha Surveillance LLC, as Operating Advisor for the
Starwood Industrial Portfolio Mortgage Loan, Computershare Trust Company,
National Association, as Servicing Function Participant for the Custodian for
the Starwood Industrial Portfolio Mortgage Loan, KeyBank National Association,
as Primary Servicer for the 181 West Madison Mortgage Loan, Situs Holdings,
LLC, as Special Servicer for the 181 West Madison Mortgage Loan, Wells Fargo
Bank, National Association, as Trustee for the 181 West Madison Mortgage Loan,
Wells Fargo Bank, National Association, as Custodian for the 181 West Madison
Mortgage Loan, Park Bridge Lender Services LLC, as Operating Advisor for the
181 West Madison Mortgage Loan, Computershare Trust Company, National
Association, as Servicing Function Participant for the Custodian for the 181
West Madison Mortgage Loan, Midland Loan Services, a Division of PNC Bank,
National Association, as Primary Servicer for the 560 Mission Street Mortgage
Loan, KeyBank National Association, as Special Servicer for the 560 Mission Street
Mortgage Loan prior to July 6, 2023, Argentic Services Company LP, as Special
Servicer for the 560 Mission Street Mortgage Loan on and after July 6, 2023,
Wells Fargo Bank, National Association, as Trustee for the 560 Mission Street
Mortgage Loan, Wells Fargo Bank, National Association, as Custodian for the 560
Mission Street Mortgage Loan, Park Bridge Lender Services LLC, as Operating
Advisor for the 560 Mission Street Mortgage Loan, Computershare Trust Company,
National Association, as Servicing Function Participant for the Custodian for
the 560 Mission Street Mortgage Loan, Midland Loan Services, a Division of PNC
Bank, National Association, as Primary Servicer for the F5 Tower Mortgage Loan,
Midland Loan Services, a Division of PNC Bank, National Association, as Special
Servicer for the F5 Tower Mortgage Loan, Wells Fargo Bank, National
Association, as Trustee for the F5 Tower Mortgage Loan, Wells Fargo Bank,
National Association, as Custodian for the F5 Tower Mortgage Loan, Pentalpha
Surveillance LLC, as Operating Advisor for the F5 Tower Mortgage Loan,
Computershare Trust Company, National Association, as Servicing Function
Participant for the Custodian for the F5 Tower 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, Midland Loan
Services, a Division of PNC Bank, National Association, as Primary Servicer for
the 1501 Broadway Mortgage Loan, Midland Loan Services, a Division of PNC Bank,
National Association, as Special Servicer for the 1501 Broadway Mortgage Loan,
Wells Fargo Bank, National Association, as Trustee for the 1501 Broadway
Mortgage Loan, Wells Fargo Bank, National Association, as Custodian for the
1501 Broadway Mortgage Loan, and Computershare Trust Company, National
Association, as Servicing Function Participant for the Custodian for the 1501
Broadway Mortgage Loan.





Dated: March 18, 2024









/s/
Kunal K. Singh

Kunal
K. Singh

President
and Chief Executive Officer

(senior
officer in charge of securitization of the depositor)