N.Y. U.C.C. 2-a-514

Section 2-A-514. Waiver of Lessee's Objections.\n (1) In rejecting goods, a lessee's failure to state a particular\ndefect that is ascertainable by reasonable inspection precludes the\nlessee from relying on the defect to justify rejection or to establish\ndefault:\n (a) if, stated seasonably, the lessor or the supplier could have\n cured it (Section 2-A-513); or\n (b) between merchants if the lessor or the supplier after\n rejection has made a request in writing for a full and final\n written statement of all defects on which the lessee proposes\n to rely.\n (2) A lessee's failure to reserve rights when paying rent or other\nconsideration against documents precludes recovery of the payment for\ndefects apparent on the face of the documents.\n