2017 New York Laws
RCO - Religious Corporations
Article 2 - General Provisions
8 - Lot Owners' Rights.

  8.  Lot  owners'  rights.  Lots  in  such  cemeteries shall be held
  indivisible, and upon the decease of a proprietor of such lot the  title
  thereto shall descend to his heirs-at-law or devisees, subject, however,
  to  the  following  limitations and conditions: If he leaves a widow and
  children, they shall have in common the possession, care and control  of
  such  lot  during  her  life.  If he leaves a widow and no children, she
  shall have the possession, care and control of such lot during her life.
  If he leaves children and no widow, they, or the survivor of them, shall
  in common have the possession, care and control of such lot  during  the
  life  of  the survivor of them. The parties having such possession, care
  and control of such lot during the term thereof, may  erect  a  monument
  and make other permanent improvements thereon.  The widow shall have the
  right  of  interment, for her own body in such lot, or in a tomb in such
  lot and a right to have her body remain permanently interred or entombed
  therein, except that her body may be removed  therefrom  to  some  other
  family  lot or tomb with the consent of her heirs. At any time when more
  than one person is entitled to the possession, care or control  of  such
  lot,  the  persons so entitled thereto shall designate in writing to the
  religious corporation which of their number shall represent the lot, and
  on their failure to designate, the board of trustees or directors of the
  corporation shall enter of record which of said parties shall  represent
  the lot, while such failure continues. The widow may at any time release
  her  right  in such lot, but no conveyance or devise by any other person
  shall deprive her of such right.