Except as otherwise provided in this chapter or the governing principles: (1) Only the members shall select a manager or managers; (2) A manager may be a member or a nonmember; (3) If a manager is not selected, all members shall be managers; (4) Each manager has equal rights in the management and conduct of the association’s activities; (5) All matters relating to the activities shall be decided by its managers, except for matters reserved for approval by members in § 29-1112; and (6) A difference among managers shall be decided by a majority of the managers.