Now that's a shit situation to be in.. Sorry you have to deal with it. In my non-lawyer opinion, I'd say your best bet would be to sit down with a copy of your lease, and a copy of the local, state, and federal laws pertaining to the situation. They should give you some idea of who is responsable for taking care of the situation, you or the landlord. If it's the landlord, I'd look into the ramifications of your stopping rent payments until the situation is resolved. If that's not an option (could it end up on your credit report?), and your only recourse is to sue the neighbors, I'd talk to that lawyer you're paying for and see if a suit against the landlord would be advisable as well, for any lease violations, legal costs, "pain and suffering", and back-rent you can get out of them. I'm not normally an advocate for the shotgun-pattern lawsuit or hitting people in the wallet in general, but if what you're describing is accurate, theres no reason someone should have to live like that.