EX‐31

 

 

Rule13a-14(d)/15d-14(d) Certifications.

 

I,Leah Nivison, certify that:

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| 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 2013-GCJ12 (the "Exchange Act periodic reports");                                                                                                                                                                                                                                                                                                                       |
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| 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;                                                                                                                                                                                                                           |
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| 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;                                                                                                                                                                                                                                                                                                                                                               |
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| 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                                                                                                                                                                                                                                                                             |
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| 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. |
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In giving the certificationsabove, I have reasonably relied on information provided to me by the followingunaffiliated parties:Wells Fargo Bank, National Association, as Master Servicer, Rialto CapitalAdvisors, LLC, as Special Servicer, Deutsche Bank Trust Company Americas, asTrustee, Wells Fargo Bank, National Association, as Certificate Administrator,Wells Fargo Bank, National Association, as Custodian, Situs Holdings, LLC, asOperating Advisor, CoreLogic Commercial Real Estate Services, Inc., asServicing Function Participant, and National Tax Search, LLC, as ServicingFunction Participant.

 

Dated: March 24, 2017

 

/s/ Leah Nivison

Chief Executive Officer

(senior officer in charge ofsecuritization of the depositor)