Sec. 51.827.  DISCHARGE OF LIEN.  (a)  On the final payment of the taxes, either the assessor and collector or the trustee shall issue a certificate certifying that the taxes have been fully satisfied and the lien is released.
(b)  The execution and acknowledgment of the certificate and the recording of the certificate in the deed records of the county in which the property is located shall be full and conclusive evidence of the discharge of the taxes and lien.
Acts 1971, 62nd Leg., p. 386, ch. 58, Sec. 1, eff. Aug. 30, 1971.