wow..he must be desperate!! It sounds like he's stepping into harassment territory.
and the do-do is doing all of this in writing (leaving all kinds of evidence)....he's not very smart.
Oh wow! Good for you! Keep walking away and keep documenting it all. This is one reason I never wanted to rent a house versus an apartment. I have been a landlord before and I know how messy it can get if one party desides to not cooperate. Stay patient, being home owner again willl come again eventually! I am in the same boat, just waiting for few months before I can start the process all over again!