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





I, Leah Nivison,
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 GS Mortgage
Securities Trust 2017-GS8 (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, Midland Loan Services, a Division of
PNC Bank, National Association, as Special Servicer, Wilmington Trust, National
Association, as Trustee, Wells Fargo Bank, National Association, as Certificate
Administrator, Wells Fargo Bank, National Association, as Custodian, Pentalpha
Surveillance 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 Westin Palo Alto Mortgage Loan, Hudson Americas L.P.,
as Special Servicer for the Westin Palo Alto Mortgage Loan, Wilmington Trust,
National Association, as Trustee for the Westin Palo Alto Mortgage Loan, Wells
Fargo Bank, National Association, as Certificate Administrator for the Westin
Palo Alto Mortgage Loan, Wells Fargo Bank, National Association, as Custodian
for the Westin Palo Alto Mortgage Loan, CoreLogic Commercial Real Estate
Services, Inc., as Servicing Function Participant for the Westin Palo Alto
Mortgage Loan, National Tax Search, LLC, as Servicing Function Participant for
the Westin Palo Alto Mortgage Loan, KeyBank National Association, as Primary
Servicer for the Olympic Tower Mortgage Loan, KeyBank National Association, as
Special Servicer for the Olympic Tower Mortgage Loan, Wells Fargo Bank,
National Association, as Trustee and Certificate Administrator for the Olympic
Tower Mortgage Loan, Wells Fargo Bank, National Association, as Custodian for
the Olympic Tower Mortgage Loan, Wells Fargo Bank, National Association, as
Primary Servicer for the Loma Linda Mortgage Loan, Rialto Capital Advisors,
LLC, as Special Servicer for the Loma Linda Mortgage Loan, Wilmington Trust,
National Association, as Trustee for the Loma Linda Mortgage Loan, Wells Fargo
Bank, National Association, as Certificate Administrator for the Loma Linda
Mortgage Loan, Wells Fargo Bank, National Association, as Custodian for the
Loma Linda Mortgage Loan, Park Bridge Lender Services LLC, as Operating Advisor
for the Loma Linda Mortgage Loan, CoreLogic Commercial Real Estate Services,
Inc., as Servicing Function Participant for the Loma Linda Mortgage Loan,
National Tax Search, LLC, as Servicing Function Participant for the Loma Linda
Mortgage Loan, Wells Fargo Bank, National Association, as Primary Servicer for
the Long Island Prime Portfolio - Uniondale Mortgage Loan, Rialto Capital
Advisors, LLC, as Special Servicer for the Long Island Prime Portfolio -
Uniondale Mortgage Loan, Wilmington Trust, National Association, as Trustee for
the Long Island Prime Portfolio - Uniondale Mortgage Loan, Wells Fargo Bank,
National Association, as Certificate Administrator for the Long Island Prime
Portfolio - Uniondale Mortgage Loan, Wells Fargo Bank, National Association, as
Custodian for the Long Island Prime Portfolio - Uniondale Mortgage Loan, Park
Bridge Lender Services LLC, as Operating Advisor for the Long Island Prime
Portfolio - Uniondale Mortgage Loan, CoreLogic Commercial Real Estate Services,
Inc., as Servicing Function Participant for the Long Island Prime Portfolio -
Uniondale Mortgage Loan, National Tax Search, LLC, as Servicing Function
Participant for the Long Island Prime Portfolio - Uniondale Mortgage Loan,
Wells Fargo Bank, National Association, as Primary Servicer for the 90 Fifth
Avenue Mortgage Loan, Rialto Capital Advisors, LLC, as Special Servicer for the
90 Fifth Avenue Mortgage Loan, Wilmington Trust, National Association, as
Trustee for the 90 Fifth Avenue Mortgage Loan, Wells Fargo Bank, National
Association, as Certificate Administrator for the 90 Fifth Avenue Mortgage
Loan, Wells Fargo Bank, National Association, as Custodian for the 90 Fifth
Avenue Mortgage Loan, Park Bridge Lender Services LLC, as Operating Advisor for
the 90 Fifth Avenue Mortgage Loan, CoreLogic Commercial Real Estate Services,
Inc., as Servicing Function Participant for the 90 Fifth Avenue Mortgage Loan,
National Tax Search, LLC, as Servicing Function Participant for the 90 Fifth
Avenue Mortgage Loan, Wells Fargo Bank, National Association, as Primary
Servicer for the Petco Corporate Headquarters Mortgage Loan, Rialto Capital
Advisors, LLC, as Special Servicer for the Petco Corporate Headquarters
Mortgage Loan, Wilmington Trust, National Association, as Trustee for the Petco
Corporate Headquarters Mortgage Loan, Wells Fargo Bank, National Association,
as Certificate Administrator for the Petco Corporate Headquarters Mortgage
Loan, Wells Fargo Bank, National Association, as Custodian for the Petco
Corporate Headquarters Mortgage Loan, Park Bridge Lender Services LLC, as
Operating Advisor for the Petco Corporate Headquarters Mortgage Loan, CoreLogic
Commercial Real Estate Services, Inc., as Servicing Function Participant for
the Petco Corporate Headquarters Mortgage Loan, National Tax Search, LLC, as
Servicing Function Participant for the Petco Corporate Headquarters Mortgage
Loan, Wells Fargo Bank, National Association, as Primary Servicer for the Shops
at Boardman Mortgage Loan, Rialto Capital Advisors, LLC, as Special Servicer
for the Shops at Boardman Mortgage Loan, Wilmington Trust, National
Association, as Trustee for the Shops at Boardman Mortgage Loan, Wells Fargo
Bank, National Association, as Certificate Administrator for the Shops at
Boardman Mortgage Loan, Wells Fargo Bank, National Association, as Custodian
for the Shops at Boardman Mortgage Loan, Park Bridge Lender Services LLC, as
Operating Advisor for the Shops at Boardman Mortgage Loan, CoreLogic Commercial
Real Estate Services, Inc., as Servicing Function Participant for the Shops at
Boardman Mortgage Loan, National Tax Search, LLC, as Servicing Function
Participant for the Shops at Boardman Mortgage Loan, Wells Fargo Bank, National
Association, as Primary Servicer for the Starwood Lodging Hotel Portfolio
Mortgage Loan, Wells Fargo Bank, National Association, as Special Servicer for
the Starwood Lodging Hotel Portfolio Mortgage Loan, U.S. Bank National
Association, as Trustee and Certificate Administrator for the Starwood Lodging
Hotel Portfolio Mortgage Loan, U.S. Bank National Association, as Custodian for
the Starwood Lodging Hotel Portfolio Mortgage Loan, CoreLogic Commercial Real
Estate Services, Inc., as Servicing Function Participant for the Starwood
Lodging Hotel Portfolio Mortgage Loan, National Tax Search, LLC, as Servicing
Function Participant for the Starwood Lodging Hotel Portfolio Mortgage Loan,
Wells Fargo Bank, National Association, as Primary Servicer for the Worldwide
Plaza Mortgage Loan, Cohen Financial, a Division of SunTrust Bank, as Special
Servicer for the Worldwide Plaza Mortgage Loan, Wilmington Trust, National
Association, as Trustee for the Worldwide Plaza Mortgage Loan, Wells Fargo
Bank, National Association, as Certificate Administrator for the Worldwide
Plaza Mortgage Loan, Wells Fargo Bank, National Association, as Custodian for
the Worldwide Plaza Mortgage Loan, Park Bridge Lender Services LLC, as
Operating Advisor for the Worldwide Plaza Mortgage Loan, CoreLogic Commercial
Real Estate Services, Inc., as Servicing Function Participant for the Worldwide
Plaza Mortgage Loan, National Tax Search, LLC, as Servicing Function
Participant for the Worldwide Plaza Mortgage Loan, Wells Fargo Bank, National
Association, as Primary Servicer for the Esperanza Mortgage Loan, Rialto
Capital Advisors, LLC, as Special Servicer for the Esperanza Mortgage Loan,
Wilmington Trust, National Association, as Trustee for the Esperanza Mortgage
Loan, Wells Fargo Bank, National Association, as Certificate Administrator for
the Esperanza Mortgage Loan, Wells Fargo Bank, National Association, as
Custodian for the Esperanza Mortgage Loan, Pentalpha Surveillance LLC, as
Operating Advisor for the Esperanza Mortgage Loan, CoreLogic Commercial Real
Estate Services, Inc., as Servicing Function Participant for the Esperanza
Mortgage Loan, and National Tax Search, LLC, as Servicing Function Participant
for the Esperanza Mortgage Loan.







Dated: March 25, 2019





/s/ Leah Nivison





Chief Executive
Officer

(senior
officer in charge of securitization of the depositor)