N.Y.C. Admin. Code § 7-202: § 7-202 Power of comptroller to extend the time for commencement of suit upon claims.

Notwithstanding any other provision of law, the comptroller may, by stipulation in writing, agree with a claimant against the city, the board of education or any community college of the city university of New York, to extend the time of such claimant to commence suit upon a claim, the settlement of which is then pending before the comptroller, provided that such stipulation shall not extend the time within which such suit may be brought for a period or periods aggregating more than six months after the expiration of the time otherwise limited by law for the commencement of a suit upon such claim.