Service and assistance animals are not pets
Every breed list and weight limit on this site is a pet policy. Under the Fair Housing Act, a service animal or assistance animal is not a pet, and a pet policy is generally not what governs it.
What that means in practice
Housing providers are generally required to make a reasonable accommodation for an assistance animal even where they have a "no pets" rule, a breed restriction or a weight limit — and they generally cannot charge pet fees, pet rent or a pet deposit for one. A request can still be refused in specific circumstances, and the provider can ask for certain information when the need is not obvious.
Those are the broad strokes, and broad strokes are as far as this site will go. The details decide real cases, and they belong to HUD and to a housing lawyer, not to a directory of pet policies.
Read the actual guidance
One thing we will not do
We do not carry advertising for "register your ESA" or instant-letter services, and we will not take their money. A letter bought in ten minutes from a site that has never met you is the thing most likely to get a genuine accommodation request refused. If you need an assistance animal, that conversation belongs with a provider who actually treats you.
This page is general information, not legal advice, and it is not a substitute for HUD guidance or a lawyer. Laws differ by state and city, and they change.