I would have call the cops..and like other frens said talk to landlord and once the lease is over just Move Out or and even if that doesn't work talking to landlord or calling cops then break the lease and move out. Some people are sick they enjoy giving trouble to other people. They are miserable and their misery needs company thats all. I have been on that situation i did everything i could, calling cops, talking to landlord and nothing worked so I moved out. Goodluck with that and next time you take the lease make sure you do some research about place and check the place out during nights and weekend and talk to neighbors.. Landlords, all they wants is money so they are not gono tell you whats ur surrounding is gono be like except telling all good.