The Massachusetts Fair Housing Law, M.G.L. c.151B  § 4(7B) states:

For any person to make, print, or publish, or cause to be made, printed, or published any notice, statement or advertisement, with respect to the sale or rental of multiple dwelling, contiguously located, publicly assisted or other covered housing accommodations that indicates any preference, limitation, or discrimination based on race, color, religion, sex, sexual orientation which shall not include persons whose sexual orientation involves minor children as the sex object, national origin, genetic information, ancestry, children, marital status, public assistance recipiency, or handicap or an intention to make any such preference, limitation or discrimination except where otherwise legally permitted.