(a) which, after July first, nineteen hundred fifty, is granted exemption in whole or in part from taxes levied by the state or any of its political subdivisions;

(b) which is constructed after July first, nineteen hundred fifty, on land sold below cost by the state or any of its political subdivisions or any agency thereof, pursuant to the federal housing act of nineteen hundred forty-nine;

(c) which is constructed after July first, nineteen hundred fifty, in whole or in part on property acquired or assembled by the state or any of its political subdivisions or any agency thereof through the power of condemnation or otherwise for the purpose of such construction;

(d) for the acquisition, construction, repair or maintenance of which the state or any of its political subdivisions or any agency thereof supplies, after July first, nineteen hundred fifty, funds or other financial assistance;

(e) (1) which is located in a multiple dwelling; and (2) the acquisition, construction, rehabilitation, repair or maintenance of which is, after July first, nineteen hundred fifty-five, financed in whole or in part by a loan, whether or not secured by a mortgage, the repayment of which is guaranteed or insured by the federal government or any agency thereof, or the state or any of its political subdivisions or any agency thereof, provided that such a housing accommodation shall be deemed to be publicly assisted only during the life of such loan and such guaranty or insurance; or

(f) which is offered for sale by a person who owns or otherwise controls the sale of ten or more housing accommodations located on land that is contiguous (exclusive of public streets), if (1) the acquisition, construction, rehabilitation, repair or maintenance of such housing accommodations is, after July first, nineteen hundred fifty-five, financed in whole or in part by a loan, whether or not secured by a mortgage, the repayment of which is guaranteed or insured by the federal government or any agency thereof, or the state or any of its political subdivisions or any agency thereof, provided that such a housing accommodation shall be deemed to be publicly assisted only during the life of such loan and guaranty or insurance, or (2) a commitment, issued by a government agency after July first, nineteen hundred fifty-five, is outstanding that acquisition of such housing accommodations may be financed in whole or in part by a loan, whether or not secured by a mortgage, the repayment of which is guaranteed or insured by the federal government or any agency thereof, or the state or any of its political subdivisions or any agency thereof. 4. The term "owner" includes the lessee, sub-lessee, assignee, managing agent, or other person having the right of ownership or possession or the right to rent or lease housing accommodations and includes the state and any of its political subdivisions and any agency thereof. 5. The term "discriminate" includes to segregate or separate. 6. The term "multiple dwelling", as herein used, means a dwelling which is occupied, as a rule, for permanent residence purposes and which is either rented, leased, let or hired out, to be occupied as the residence or home of three or more families living independently of each other. A "multiple dwelling" shall not be deemed to include a hospital, convent, monastery, asylum or public institution, or a fireproof building used wholly for commercial purposes except for not more than one janitor's apartment and not more than one penthouse occupied by not more than two families. The term "family," as used herein, means either a person occupying a dwelling and maintaining a household, with not more than four boarders, roomers or lodgers, or two or more persons occupying a dwelling, living together and maintaining a common household, with not more than four boarders, roomers or lodgers. A "boarder," "roomer" or "lodger" residing with a family means a person living within the household who pays a consideration for such residence and does not occupy such space within the household as an incident of employment therein.