Friend of mine here has a bunch of rent houses. When people refuse to pay he starts removing things from his house to make it uncomfortable to stay. Like removing all the doors. In the winter they get cold. in the summer the mosquitos run them out. Not sure how he gets away with it but he is one of those guys that is fearless. If they want to stay they have to pay.
I can't recall the jurisdictions but I believe there are places where owners aren't allowed to cut off electricity, water and the like in an effort to get squatters to self evict.
