An officer of any foreign or domestic corporation, or a manager of any foreign or domestic limited liability company, is presumed to have the power and authority to execute and acknowledge, in its behalf, any instrument granting, conveying, or otherwise affecting any interest in or lien upon any property of the corporation or limited liability company, including contracts, mortgages, deeds, plats, replats, easements, rights of way, options, dedications, restrictions, releases, and satisfactions. Any such instrument executed by an officer of the corporation or limited liability company prior to July 1, 1983, and otherwise proper, is valid and effective.
N.D.C.C. § 47-10-05.1