Make your final payment and move out at the end of the last month you've paid in full for. Obviously your landlord doesn't want you there. If you're current on rent, that's good, but after you move out your landlord can still sue you for damages to the property. Be sure to thoroughly clean the premises, maybe even hire someone to clean it for you. I don't doubt for a second that if you've gotten 60 letters advising you to vacate that the landlord will then sue you after you leave.