You should contact the Harris County Clerk's office to request documents under your name and the property-this is of public record so anyone can look.
I found 4 documents on the County Clerk's website but they don't show images of the documents. Looks like there was a Deed of Trust and Warranty Deed filed and also a release of lien. But, again, they don't have images of the documents so I can't tell what was released, etc.
Go to the following link http://www.cclerk.hctx.net/applications/websearch/RP.aspx
and enter your name in as grantee
Best of luck