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





I, Daniel Vinson, 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 BBCMS Mortgage Trust 2019-C3 (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 prior to May
10, 2023, K-Star Asset Management LLC, as Special Servicer on and after May 10,
2023, Midland Loan Services, a Division of PNC Bank, National Association, as
Special Servicer of the Vanguard Portfolio Mortgage Loan, Wells Fargo Bank,
National Association, as Trustee and Certificate Administrator, Wells Fargo
Bank, National Association, as Custodian, Pentalpha Surveillance LLC, as Operating
Advisor, KeyBank National Association, as Primary Servicer, 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, 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
Custodian for the Christiana Mall Mortgage Loan, CoreLogic Solutions, LLC, as
Servicing Function Participant for the Christiana Mall Mortgage Loan,
Computershare Trust Company, National Association, as Servicing Function
Participant for the Custodian for the Christiana Mall Mortgage Loan, Wells
Fargo Bank, National Association, as Primary Servicer for the 787 Eleventh
Avenue Mortgage Loan, Situs Holdings, LLC, as Special Servicer for the 787
Eleventh Avenue Mortgage Loan, Wilmington Trust, National Association, as
Trustee for the 787 Eleventh Avenue Mortgage Loan, Wells Fargo Bank, National
Association, as Custodian for the 787 Eleventh Avenue Mortgage Loan, CoreLogic
Solutions, LLC, as Servicing Function Participant for the 787 Eleventh Avenue
Mortgage Loan, Computershare Trust Company, National Association, as Servicing
Function Participant for the Custodian for the 787 Eleventh Avenue Mortgage Loan,
Midland Loan Services, a Division of PNC Bank, National Association, as Primary
Servicer for the ExchangeRight Net Leased Portfolio 24 Mortgage Loan, 3650 REIT
Loan Servicing LLC, as Special Servicer for the ExchangeRight Net Leased
Portfolio 24 Mortgage Loan, Wells Fargo Bank, National Association, as Trustee
for the ExchangeRight Net Leased Portfolio 24 Mortgage Loan, Wells Fargo Bank,
National Association, as Custodian for the ExchangeRight Net Leased Portfolio
24 Mortgage Loan, Park Bridge Lender Services LLC, as Operating Advisor for the
ExchangeRight Net Leased Portfolio 24 Mortgage Loan, Computershare Trust
Company, National Association, as Servicing Function Participant for the
Custodian for the ExchangeRight Net Leased Portfolio 24 Mortgage Loan, Midland
Loan Services, a Division of PNC Bank, National Association, as Primary
Servicer for the ILPT Hawaii Portfolio Mortgage Loan, Rialto Capital Advisors,
LLC, as Special Servicer for the ILPT Hawaii Portfolio Mortgage Loan, Wells
Fargo Bank, National Association, as Trustee for the ILPT Hawaii Portfolio
Mortgage Loan, Wells Fargo Bank, National Association, as Custodian for the
ILPT Hawaii Portfolio Mortgage Loan, Park Bridge Lender Services LLC, as
Operating Advisor for the ILPT Hawaii Portfolio Mortgage Loan, Computershare
Trust Company, National Association, as Servicing Function Participant for the
Custodian for the ILPT Hawaii Portfolio Mortgage Loan, KeyBank National
Association, as Primary Servicer for the NEMA San Francisco Mortgage Loan, Situs
Holdings, LLC, as Special Servicer for the NEMA San Francisco Mortgage Loan,
Wells Fargo Bank, National Association, as Trustee for the NEMA San Francisco
Mortgage Loan, Wells Fargo Bank, National Association, as Custodian for the
NEMA San Francisco Mortgage Loan, Computershare Trust Company, National
Association, as Servicing Function Participant for the Custodian for the NEMA
San Francisco Mortgage Loan, Midland Loan Services, a Division of PNC Bank,
National Association, as Primary Servicer for the Southern Motion Industrial
Portfolio Mortgage Loan, Midland Loan Services, a Division of PNC Bank,
National Association, as Special Servicer for the Southern Motion Industrial
Portfolio Mortgage Loan, Wells Fargo Bank, National Association, as Trustee for
the Southern Motion Industrial Portfolio Mortgage Loan, Wells Fargo Bank,
National Association, as Custodian for the Southern Motion Industrial Portfolio
Mortgage Loan, Park Bridge Lender Services LLC, as Operating Advisor for the
Southern Motion Industrial Portfolio Mortgage Loan, Computershare Trust
Company, National Association, as Servicing Function Participant for the
Custodian for the Southern Motion Industrial Portfolio Mortgage Loan, Midland
Loan Services, a Division of PNC Bank, National Association, as Primary
Servicer for The Colonnade Office Complex Mortgage Loan, Midland Loan Services,
a Division of PNC Bank, National Association, as Special Servicer for The
Colonnade Office Complex Mortgage Loan prior to October 30, 2023, Mount Street
US (Georgia) LLP, as Special Servicer for The Colonnade Office Complex Mortgage
Loan on and after October 30, 2023, Wells Fargo Bank, National Association, as
Trustee for The Colonnade Office Complex Mortgage Loan, Wells Fargo Bank,
National Association, as Custodian for The Colonnade Office Complex Mortgage
Loan, Park Bridge Lender Services LLC, as Operating Advisor for The Colonnade
Office Complex Mortgage Loan, Computershare Trust Company, National
Association, as Servicing Function Participant for the Custodian for The
Colonnade Office Complex Mortgage Loan, Wells Fargo Bank, National Association,
as Primary Servicer for the Goodyear Portfolio Mortgage Loan, Rialto Capital
Advisors, LLC, as Special Servicer for the Goodyear Portfolio Mortgage Loan,
Wilmington Trust, National Association, as Trustee for the Goodyear Portfolio
Mortgage Loan, Wells Fargo Bank, National Association, as Custodian for the
Goodyear Portfolio Mortgage Loan, Park Bridge Lender Services LLC, as Operating
Advisor for the Goodyear Portfolio Mortgage Loan, CoreLogic Solutions, LLC, as
Servicing Function Participant for the Goodyear Portfolio Mortgage Loan,
Computershare Trust Company, National Association, as Servicing Function
Participant for the Custodian for the Goodyear Portfolio Mortgage Loan, Midland
Loan Services, a Division of PNC Bank, National Association, as Primary
Servicer for the GNL Industrial Portfolio Mortgage Loan, LNR Partners, LLC, as
Special Servicer for the GNL Industrial Portfolio Mortgage Loan, Wells Fargo
Bank, National Association, as Trustee for the GNL Industrial Portfolio
Mortgage Loan, Wells Fargo Bank, National Association, as Custodian for the GNL
Industrial Portfolio Mortgage Loan, Pentalpha Surveillance LLC, as Operating
Advisor for the GNL Industrial Portfolio Mortgage Loan, Computershare Trust
Company, National Association, as Servicing Function Participant for the
Custodian for the GNL Industrial Portfolio Mortgage Loan, Midland Loan
Services, a Division of PNC Bank, National Association, as Primary Servicer for
the ExchangeRight Net Leased Portfolio 26 Mortgage Loan, LNR Partners, LLC, as
Special Servicer for the ExchangeRight Net Leased Portfolio 26 Mortgage Loan,
Wells Fargo Bank, National Association, as Trustee for the ExchangeRight Net
Leased Portfolio 26 Mortgage Loan, Wells Fargo Bank, National Association, as
Custodian for the ExchangeRight Net Leased Portfolio 26 Mortgage Loan,
Pentalpha Surveillance LLC, as Operating Advisor for the ExchangeRight Net
Leased Portfolio 26 Mortgage Loan, and Computershare Trust Company, National
Association, as Servicing Function Participant for the Custodian for the
ExchangeRight Net Leased Portfolio 26 Mortgage Loan.







Dated: March 15, 2024





/s/ Daniel Vinson

Daniel Vinson

Chief Executive Officer

(senior
officer in charge of securitization of the depositor)