Has anyone notified the IRS about this man’s “income” in the form of the value of the house and contents? The IRS taxes large sums of money you find or even steal. His acquisition of the house would seem to fall into one of these categories so he should owe taxes.
This IRS would probably put a lien on the house, assuming it would hurt the occupier.
He would have to be a Republican before the IRS would go after him. His behavior makes it more likely that he is a Democrat.