(a) On payment in full of the amount of child support due, together with any reasonable and necessary attorney's fees, court costs, and expenses, the child support lien claimant shall execute and deliver to the obligor or the obligor's attorney a release of the child support lien.
(b) The release of the child support lien is effective when:
(1) filed with the county clerk with whom the lien notice or abstract of judgment was filed; or
(2) delivered to any other individual or organization that may have been served with a lien notice under this subchapter.
(c) A release of child support lien filed by the Title IV-D agency under this section does not require verification.