2006 New York Code - Revocation Of Acceptance Of Goods.

 
  Section 2-A-517. Revocation of Acceptance of Goods.
    (1)  A  lessee may revoke acceptance of a lot or commercial unit whose
  nonconformity substantially impairs its  value  to  the  lessee  if  the
  lessee has accepted it:
         (a) except  in  the  case  of  a finance lease, on the reasonable
             assumption that its nonconformity would be cured and  it  has
             not been seasonably cured; or
         (b) without  discovery  of  the  nonconformity  if  the  lessee's
             acceptance was reasonably  induced  either  by  the  lessor's
             assurances  or, except in the case of a finance lease, by the
             difficulty of discovery before acceptance.
    (2) Except in the case of a finance  lease  that  is  not  a  consumer
  lease, a lessee may revoke acceptance of a lot or commercial unit if the
  lessor  defaults  under the lease contract and the default substantially
  impairs the value of that lot or commercial unit to the lessee.
    (3) If  the  lease  agreement  so  provides,  the  lessee  may  revoke
  acceptance  of a lot or commercial unit because of other defaults by the
  lessor.
    (4) Revocation of acceptance must occur within a reasonable time after
  the lessee discovers or should have discovered the  ground  for  it  and
  before  any  substantial  change  in condition of the goods which is not
  caused by the nonconformity.  Revocation  is  not  effective  until  the
  lessee notifies the lessor.
    (5)  A lessee who so revokes has the same right and duties with regard
  to the goods involved as if the lessee had rejected them.