Pitbulls as service animals... I don't want to get sued!

[Brandon Turner]

Hey folks - so I have a property in a lower-income part of town and almost every tenant who applies has a pitbull. (The animal, not the singer!) 

Anyway - tenants today know the game. They just need to say "it's a service animal" and get a letter from a doctor and I can't turn them down. So they do.  This is a game they all play and it's always annoyed me but there's not much I can do except find other reasons to disqualify them (or just allow the animal.) 

But here's an interesting twist:  the insurance company directly told us that under no circumstance will they cover a pitbull biting someone. Pitbulls are not allowed (which I always assumed.) 

So- it would be illegal for me to tell the tenant I can't rent to them because of the pitbull... but insurance won't cover me if they do have one.

Anyone have any ideas on what I should do? I guess just find another way to disqualify them... but if they are truly perfect tenants, I could get sued for disability discrimination.