Here is a report about the rights a renter has in the event the owner goes into foreclosure
Without Just Cause (pdf)
Texas info starts on page 103. The quick and dirty is if your landlord goes into foreclosure and the buyer wants you out…you have 30 whole days to move out. Kind of sobering.
If you have more questions you can contact
Texas Tenants’ Union
4228 Main Street Dallas, TX 75226