What do you want out of this? Lawyers are expensive and even if you are 100% legally correct, there is never a guarantee you will win, let alone get your legal fees paid.

In my opinion you should try to negotiate a cash for keys situation. They don't want you there and are making you miserable. If you can find a new place, maybe offer your current landlord that you'll gtfo in exchange for your security deposit and moving costs paid in advance, or paid when you turn the keys over. Of course get everything in writing, so if they try to screw you, you can take them to municipal court.