Texas Property Code - PROP § 53.152. Release of Claim or Lien

(a) When a debt for labor or materials is satisfied or paid by collected funds, the person who furnished the labor or materials shall, not later than the 10th day after the date of receipt of a written request, furnish to the requesting person a release of the indebtedness and any lien claimed, to the extent of the indebtedness paid. An owner, the original contractor, or any person making the payment may request the release.

(b) A release of lien must be in a form that would permit it to be filed of record.