TS,
I would make the owner sign an agreement to foot the bill for your moving expenses BEFORE you agree to move out. The law technically sides with you but you should still leave, IMO, because the owner can make your life hell while you are still there.
However, you've got a good deal of leverage here yourself and making sure he agrees in writing to cover your moving expenses will make it a hell of a lot easier to win in an open and shut type manner if he tries to stick you for it later.