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 DBGS 2018-C1 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:



Wells Fargo Bank,
National Association, as Master Servicer, Rialto Capital Advisors, 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 Commercial Real Estate Services, Inc., as
Servicing Function Participant, National Tax Search, LLC, as Servicing Function
Participant, Wells Fargo Bank, National Association, as Primary Servicer for
The Gateway Mortgage Loan, AEGON USA Realty Advisors, LLC, as Special Servicer for
The Gateway Mortgage Loan, Wilmington Trust, National Association, as Trustee
for The Gateway Mortgage Loan, Wells Fargo Bank, National Association, as
Certificate Administrator for The Gateway Mortgage Loan, Wells Fargo Bank,
National Association, as Custodian for The Gateway Mortgage Loan, Park Bridge
Lender Services LLC, as Operating Advisor for The Gateway Mortgage Loan,
CoreLogic Commercial Real Estate Services, Inc., as Servicing Function
Participant for The Gateway Mortgage Loan, National Tax Search, LLC, as
Servicing Function Participant for The Gateway Mortgage Loan, Wells Fargo Bank,
National Association, as Primary Servicer for the Aventura Mall Mortgage Loan,
CWCapital Asset Management LLC, as Special Servicer for the Aventura Mall
Mortgage Loan, Wilmington Trust, National Association, as Trustee for the
Aventura Mall Mortgage Loan, Wells Fargo Bank, National Association, as
Certificate Administrator for the Aventura Mall Mortgage Loan, Wells Fargo
Bank, National Association, as Custodian for the Aventura Mall Mortgage Loan,
Park Bridge Lender Services LLC, as Operating Advisor for the Aventura Mall
Mortgage Loan, CoreLogic Commercial Real Estate Services, Inc., as Servicing
Function Participant for the Aventura Mall Mortgage Loan, National Tax Search,
LLC, as Servicing Function Participant for the Aventura Mall Mortgage Loan,
Wells Fargo Bank, National Association, as Primary Servicer for the FXI
Portfolio Mortgage Loan, Rialto Capital Advisors, LLC, as Special Servicer for
the FXI Portfolio Mortgage Loan, Wilmington Trust, National Association, as
Trustee for the FXI Portfolio Mortgage Loan, Wells Fargo Bank, National
Association, as Certificate Administrator for the FXI Portfolio Mortgage Loan,
Wells Fargo Bank, National Association, as Custodian for the FXI Portfolio
Mortgage Loan, Park Bridge Lender Services LLC, as Operating Advisor for the
FXI Portfolio Mortgage Loan, CoreLogic Commercial Real Estate Services, Inc.,
as Servicing Function Participant for the FXI Portfolio Mortgage Loan, National
Tax Search, LLC, as Servicing Function Participant for the FXI Portfolio
Mortgage Loan, Wells Fargo Bank, National Association, as Primary Servicer for
the Quality RV Resorts Mortgage Loan, Rialto Capital Advisors, LLC, as Special
Servicer for the Quality RV Resorts Mortgage Loan, Wilmington Trust, National
Association, as Trustee for the Quality RV Resorts Mortgage Loan, Wells Fargo
Bank, National Association, as Certificate Administrator for the Quality RV
Resorts Mortgage Loan, Wells Fargo Bank, National Association, as Custodian for
the Quality RV Resorts Mortgage Loan, Park Bridge Lender Services LLC, as
Operating Advisor for the Quality RV Resorts Mortgage Loan, CoreLogic
Commercial Real Estate Services, Inc., as Servicing Function Participant for
the Quality RV Resorts Mortgage Loan, National Tax Search, LLC, as Servicing
Function Participant for the Quality RV Resorts Mortgage Loan, Wells Fargo
Bank, National Association, as Primary Servicer for the GSK North American HQ
Mortgage Loan, Rialto Capital Advisors, LLC, as Special Servicer for the GSK
North American HQ Mortgage Loan, Wilmington Trust, National Association, as
Trustee for the GSK North American HQ Mortgage Loan, Wells Fargo Bank, National
Association, as Certificate Administrator for the GSK North American HQ
Mortgage Loan, Wells Fargo Bank, National Association, as Custodian for the GSK
North American HQ Mortgage Loan, Park Bridge Lender Services LLC, as Operating
Advisor for the GSK North American HQ Mortgage Loan, CoreLogic Commercial Real
Estate Services, Inc., as Servicing Function Participant for the GSK North
American HQ Mortgage Loan, National Tax Search, LLC, as Servicing Function
Participant for the GSK North American HQ Mortgage Loan, Wells Fargo Bank,
National Association, as Primary Servicer for the Christiana Mall Mortgage
Loan, Wells Fargo Bank, National Association, as Special Servicer for the
Christiana Mall Mortgage Loan, Wilmington Trust, National Association, as
Trustee for the Christiana Mall Mortgage Loan, Wells Fargo Bank, National
Association, as Certificate Administrator for the Christiana Mall Mortgage
Loan, Wells Fargo Bank, National Association, as Custodian for the Christiana
Mall Mortgage Loan, CoreLogic Commercial Real Estate Services, Inc., as
Servicing Function Participant for the Christiana Mall Mortgage Loan, National
Tax Search, LLC, as Servicing Function Participant for the Christiana Mall
Mortgage Loan, KeyBank National Association, as Primary Servicer for the West
Coast Albertsons Portfolio Mortgage Loan, Midland Loan Services, a Division of
PNC Bank, National Association, as Special Servicer for the West Coast
Albertsons Portfolio Mortgage Loan, Wilmington Trust, National Association, as
Trustee for the West Coast Albertsons Portfolio Mortgage Loan, Citibank, N.A.,
as Certificate Administrator for the West Coast Albertsons Portfolio Mortgage
Loan, Citibank, N.A., as Custodian for the West Coast Albertsons Portfolio
Mortgage Loan, Park Bridge Lender Services LLC, as Operating Advisor for the
West Coast Albertsons Portfolio Mortgage Loan, U.S. Bank, National Association,
as Servicing Function Participant for the West Coast Albertsons Portfolio
Mortgage Loan, KeyBank National Association, as Primary Servicer for the
Moffett Towers II - Building 1 Mortgage Loan, Midland Loan Services, a Division
of PNC Bank, National Association, as Special Servicer for the Moffett Towers
II - Building 1 Mortgage Loan, Wilmington Trust, National Association, as
Trustee for the Moffett Towers II - Building 1 Mortgage Loan, Citibank, N.A.,
as Certificate Administrator for the Moffett Towers II - Building 1 Mortgage
Loan, Citibank, N.A., as Custodian for the Moffett Towers II - Building 1
Mortgage Loan, Park Bridge Lender Services LLC, as Operating Advisor for the
Moffett Towers II - Building 1 Mortgage Loan, U.S. Bank, National Association,
as Servicing Function Participant for the Moffett Towers II - Building 1
Mortgage Loan, KeyBank National Association, as Primary Servicer for the Willow
Creek Corporate Center Mortgage Loan, Midland Loan Services, a Division of PNC
Bank, National Association, as Special Servicer for the Willow Creek Corporate
Center Mortgage Loan, Wilmington Trust, National Association, as Trustee for
the Willow Creek Corporate Center Mortgage Loan, Citibank, N.A., as Certificate
Administrator for the Willow Creek Corporate Center Mortgage Loan, Citibank,
N.A., as Custodian for the Willow Creek Corporate Center Mortgage Loan, Park
Bridge Lender Services LLC, as Operating Advisor for the Willow Creek Corporate
Center Mortgage Loan, and U.S. Bank, National Association, as Servicing
Function Participant for the Willow Creek Corporate Center Mortgage Loan.







Dated: October 30,
2019





/s/ Helaine M. Kaplan





President

(senior
officer in charge of securitization of the depositor)