just a idea, but if town claims can decay without any upkeep, then why can't personal claims?
I think this could free up any areas from players who quit, leaving it open for looting, and also make it really easy too repair so it isn't a big hassle for active players.
Something like repair the claim with 2clay and 2 lime or rocks every 2 or 3 weeks, and possibly ad a decaying graphic that changes every week so it is easy to tell if it needs repaired or not.