Not to put too fine a point on it, but when someone like that is able to prevent you from taking your home, he is robbing you. And everything the state enforces, they do at the point of a gun, ultimately. Therefore, if he is doing it while hiding behind the state that is protecting his right to do so, he is robbing you at gunpoint.
What are you going to do about it?
It’s a terrible spot to be in. The woman’s husband probably feels less than a man, because he can’t quickly resolve the issue. But few people want to knowingly commit an act that is likely to send them (the legal home owner) to the slammer. In this state of California, it’s very likely to happen that way.