Texas Property Code - PROP § 41.001. Interests in Land Exempt from Seizure

(1) purchase money;

(2) taxes on the property;

(3) work and material used in constructing improvements on the property if contracted for in writing as provided by Sections 53.254(a), (b), and (c);

(4) an owelty of partition imposed against the entirety of the property by a court order or by a written agreement of the parties to the partition, including a debt of one spouse in favor of the other spouse resulting from a division or an award of a family homestead in a divorce proceeding;

(5) the refinance of a lien against a homestead, including a federal tax lien resulting from the tax debt of both spouses, if the homestead is a family homestead, or from the tax debt of the owner;

(6) an extension of credit that meets the requirements of Section 50(a)(6), Article XVI, Texas Constitution;  or

(7) a reverse mortgage that meets the requirements of Sections 50(k)-(p), Article XVI, Texas Constitution.