Section 1. Notwithstanding section 5 of chapter 59 of the General Laws, or any other general or special law to the contrary, any city, town, or political subdivision of the commonwealth may grant a property tax credit of the real estate taxes assessed upon rental dwellings of owners who provide reduced rents for any tenant who:

(1) is at least 65 years old;

(2) has been found permanently and totally disabled and has qualified for benefits under:

(i) the Social Security Act;

(ii) the Railroad Retirement Act;

(iii) any federal act for members of the United States armed forces; or

(iv) any federal retirement system; or

(3) has been found permanently and totally disabled by any city, town, or political subdivision of the commonwealth.

Section 2. Any city, town, or political subdivision of the commonwealth granting credits pursuant to this chapter may provide for:

(1) the specific requirements for eligibility for a tax credit authorized under this section;

(2) additional limitations on eligibility for the credit;

(3) the amount and duration of the credit; and

(4) any other provision appropriate to implement the credit.