SDCL § 43-25-20: Corporate deeds and mortgages--Execution, assignment, and release by officers of corporation--Acknowledgment.

Any officer of a corporation, authorized by the charter or articles of incorporation, the bylaws, or the consent of the stockholders or of the board of directors of such corporation, may execute deeds, mortgages, assignments of mortgage, releases of mortgage, and all other instruments in the name of such corporation and acknowledge the same on behalf of such corporation.