Don’t pay him tomorrow, red flag for early rent pick up. He’s likely upside down so it’s doubtful he will have to sell it to you, it’s almost not his anyway. He can file eviction paperwork if you don’t pay, just keep records of the nod in case he tries to put a lien against you so you can rent again. My advice, run for the hills, move, advise him your security deposit will be your last months rent, don’t give him more money, figure out what day makes you even and notify him in writing you will be out that day. Don’t take anything for free but don’t risk anything and rent somewhere else. Been there, done that, still have the t-shirt.