N.Y. Public Housing Law § 14
1. In addition to the powers hereinafter granted, the commissioner, his counsel or any other officer or employee of the division specially designated by the commissioner shall have the following powers:
(p) develop, publish and distribute a land development guide which shall describe those issues which are relevant to the development of an appropriate local land use ordinance for localities of varying size and composition. Such guide may, in the discretion of the commissioner, contain model ordinances, local laws and procedures which may be adopted by localities in regulating the development of land. Such guide shall describe the merits and problems of procedures which localities may include in any land development law ordinance including but not limited to:
4. The agency shall promulgate regulations, rules and policies which provide for the rights of family members to succeed in certain cases to the rights of tenants protected by the emergency tenant protection act of nineteen seventy-four, the emergency housing rent control law, the local emergency housing rent control act, the administrative code of the city of New York and any regulations, rules and policies enacted pursuant thereto. Such regulations, rules and policies shall contain provisions which include, but shall not be limited to, the following:
(a) that unless otherwise prohibited by occupancy restrictions based upon income limitations pursuant to federal, state or local law, regulations or other requirements of governmental agencies, any member of the tenant's family, as defined in paragraph (c) of this subdivision, shall succeed to the rights of a tenant under such acts and laws where the tenant has permanently vacated the housing accommodation and such family member has resided with the tenant in the housing accommodation as a primary residence for a period of no less than two years, or where such person is a "senior citizen" or a "disabled person," as defined in paragraph (c) of this subdivision, for a period of no less than one year, immediately prior to the permanent vacating of the housing accommodation by the tenant, or from the inception of the tenancy or commencement of the relationship, if for less than such periods. For the purposes of this paragraph, "permanently vacated" shall mean the date when the tenant of record permanently stops residing in the housing accommodation regardless of subsequent contacts with the unit or the signing of lease renewals or continuation of rent payments. The minimum periods of required residency set forth in this subdivision shall not be deemed to be interrupted by any period during which the "family member" temporarily relocates because he or she:
(b) that a tenant may in a form prescribed by the division of housing and community renewal, at any time, advise the landlord of, or a landlord may at any time but no more often than once in any twelve months, request from the tenant, the names of all persons other than the tenant who are residing in the housing accommodation, and the following information pertaining to such persons:
(c) that for the purposes of such regulations: (i) "family member" shall be defined as a husband, wife, son, daughter, stepson, stepdaughter, father, mother, stepfather, stepmother, brother, sister, grandfather, grandmother, grandson, granddaughter, daughter-in-law, son-in-law, mother-in-law or father-in-law of the tenant; or any other person residing with the tenant in the housing accommodation as a primary residence who can prove emotional and financial commitment, and interdependence between such person and the tenant. Although no single factor shall be solely determinative, evidence which is to be considered in determining whether such emotional and financial commitment and interdependence existed, may include, without limitation, such factors as listed below. In no event would evidence of a sexual relationship between such persons be required or considered.