A. If the joint agreement is for a merger, the agreement, duly acknowledged by the president and secretary of each association which is a party to it, together with an affidavit by the president and secretary of each association establishing that the agreement was approved by the required vote of the directors, and the written approval of the commissioner, shall be delivered as one instrument to the commissioner who shall file it and record it in his office.
B. The merger shall become effective as of the time of filing of the agreement or certificate with the commissioner, or as of any later effective date, not more than thirty days after the date of such filing, stated in the agreement or certificate.
C. A multiple original thereof or a copy certified by the commissioner shall be filed for record in the mortgage records in each parish in which any of the corporate parties to the agreement has its domicile, and shall also be recorded in the conveyance records of each parish in which any of the corporate parties to the agreement owns immovable property, the title to which will be transferred as a result of the merger.