Yes, they could. You know why they don't? Because the courthouse keeps the records. And we trust the courthouse. No one is going to do shit for someone walking

Yes, they could. You know why they don't? Because the courthouse keeps the records. And we trust the courthouse. No one is going to do shit for someone walking in with a piece of paper with "I own this house" written on it. Or, let me clarify, you aren't going to get far, because sooner or later, those papers will be checked against the records kept by the government.