I am sure that is impossible short of making all property owners sign some sort of legal declaration that they are the real owner and the property is not encumb

I am sure that is impossible short of making all property owners sign some sort of legal declaration that they are the real owner and the property is not encumbered in any way. But given how many middle men and woman these people are already willing to pay to hide their identity, I am sure they would find all sorts of ways around that.