Who owns the House?

[Jim Means]

Hey everyone.

I have a question about something that has happened to my neighbor who asked me about it.

A mother has her son sign a Warranty Deed to her property. two years later the mother passes away.  The Records at county still lists the mother as the owner. He has done nothing to change that. She (the neighborhis sister) lives in the house does all the maintenance, and has paid all the property taxes. does the son own the property? (by the way this house is in Texas)