(1) The corporate or district powers, business, and property of all corporations or districts formed under the provisions hereof must be exercised, conducted, and controlled by a board, which shall never be less than three members. Otherwise, the number of members of the board may be increased or diminished at any time by proper amendment of the bylaws with reference thereto.
(2) The directors shall have the power to sell, lease, mortgage, hypothecate, or otherwise dispose of the corporate assets of the corporation or district, or any part thereof, as distinguished from membership lands.