If a trust owns immovable property at the time the trust terminates and the date of termination is not discernable on the face of the recorded trust agreement or extract of trust, the termination shall not cause the dispositive provisions of the trust to have their ultimate effect insofar as third persons are concerned until an act evidencing such termination has been recorded in the conveyance records of the clerk of court of the parish in which the immovable property is located.
La. R.S. § 9:2029.1