Being married, separated, or divorced does not by itself tell you who can sign for this house. The recorded deed shows how ownership is recorded. A divorce decree or another court order may also affect what can happen with the property.
The title company checks the deed and relevant court papers to identify the documentation and signatures it needs for closing. A Texas family-law attorney can explain the legal effect of an order in your situation; you do not have to resolve every question before you contact us.
Texas Family Code § 6.502 covers temporary orders while a divorce case is pending, and Chapter 7 covers property division in a divorce. The order and deed for this property are what the attorney and title company need to review.