Exactly. Unless I got confused which topic this is, OP might not even be a tenant in terms of the law. Might be able to just move out and wave bye-bye to landlord.
I'm concerned about the landlord too, but if a landlord handles business affairs in a sloppy way then he has only himself to blame.
Not being personally involved, all I can say is if I were the OP I'd just move and take my own stuff, not leave a forwarding address, skip the bye-bye, and maybe take lots of pictures before leaving as protection against possible unjustified (or even justified) damage claims from landlord.
If tenant has been paying rent by check then he can run but he can't hide.
I'm sure glad I'm not the tenant and not the landlord.