http://www.glad.org/rights/maine/c/anti-discrimination-law-in-maine/
Are any landlords exempt from the housing anti-discrimination law?
The following landlords are exempt from the law:
an owner-occupied 2-family dwelling;
Only if you don’t want to be someone’s test case. Realize that Maine is filled with many many lawyers at all levels of government who are trying to stay relevent. A lawsuit to change laws and make them more open and more inclusive will hurt you bad. And it happens.