That no sale, mortgage, lease or other disposition of the unallotted and unappropriated lands within the grant, authorized under the provisions of this article, nor any confirmation or conveyance, as provided in Section 49-5-8 NMSA 1978, shall take effect or become operative until after the regular meeting of the board of trustees held next after the meeting at which the resolution authorizing such sale, mortgage, leasing confirmation, conveyance or other disposition of the lands involved is passed, and the corporation shall not be bound by any such resolution unless the same shall have been passed at a regular meeting of the board and by a majority vote of all the members of the board.
NMS § 49-5-9