N.Y. Multiple Dwelling Law § 302: Unlawful occupation

§ 302. Unlawful occupation. 1. a. If any dwelling or structure be

occupied in whole or in part for human habitation in violation of

section three hundred one, during such unlawful occupation any bond or

note secured by a mortgage upon said dwelling or structure, or the lot

upon which it stands, may be declared due at the option of the

mortgagee.

b. No rent shall be recovered by the owner of such premises for said

period, and no action or special proceeding shall be maintained

therefor, or for possession of said premises for nonpayment of such

rent.

c. During such period the department in charge of water supply shall

not permit water to be furnished in any such dwelling or structure and

said premises shall be deemed unfit for human habitation, and the

department of health or the department charged with the enforcement of

this chapter shall cause them to be vacated.

2. The department may cause to be vacated any dwelling or any part

thereof which contains a nuisance as defined in section three hundred

nine, or is occupied by more families or persons than permitted in this

chapter, or is erected, altered or occupied contrary to law. Any such

dwelling shall not again be occupied until it or its occupancy, as the

case may be, has been made to conform to law.