New York Consolidated Laws, Real Property Actions and Proceedings Law - RPA § 1971. Certification of abandonment

(a) In the case of an occupied dwelling, the owner has failed for a period of at least three consecutive months either to collect rent or to institute summary proceedings for nonpayment of rent, and the department finds that the dwelling has become a danger to life, health or safety as a result of the owner's failure to assume his responsibility for its condition.  Such failure may be shown by such facts as an owner's failure to provide services including, but not limited to, the failure to make repairs, supply janitorial service, purchase fuel or other needed supplies, or pay utility bills.  The appointment of an administrator pursuant to article seven-A of this chapter shall not prevent the department from making a finding that a dwelling is abandoned;  or

(b) In the case of a vacant dwelling, it is not sealed or continuously guarded as required by law or it was sealed or is continuously guarded by a person other than the owner, a mortgagee, lienor or agent thereof, and either of the following facts exists:

(c) In the case of a building for which an administrator has been appointed pursuant to article seven-A of this chapter.