There was a similar case in Canada a few years ago, I think in Calgary but I cant remember for sure. Some guy who had been renting a house found a legal loophole that essentially made it possible for him to claim ownership of the house when the real owner tried to evict him. The police werent able to do anything about it. At the point where this was on the news, I believe the owner was trying to take the squatter to court but there were issues even with that. If I recall correctly the squatter was claiming the land the house was on was now his own sovereign nation. It was pretty crazy. Ill see if I can find a news article.
The idiot moved into a rental home, declared it an embassy of his sovereign nation and even had the nerve to bill the actual owner for work done to the home which was really just him wrecking stuff and changing the locks on her.
It seems that the police were able to arrest him eventually, not for the home takeover but due to an outstanding warrant. He had done the same thing to another property owner and assaulted her when she confronted him, which left her with broken bones. So he was arrested for that assault and the other losers who had moved into the house with him eventually admitted the house didnt belong to them and they left.