(1) Only the following persons may be members of a professional limited liability company:
(a) natural persons authorized by law of this or any other state, a territory of the United States, or the District of Columbia to render a professional service permitted by the articles of organization of the professional limited liability company;
(b) general partnerships in which all the partners are authorized by law of this or any other state, a territory of the United States, or the District of Columbia to render a professional service permitted by the articles of incorporation and in which at least one partner is authorized by law in this state to render a professional service permitted by the articles of organization of the professional limited liability company; and
(c) domestic or foreign professional corporations and domestic or foreign professional limited liability companies authorized by law in this state to render a professional service permitted by the articles of organization of the professional limited liability company.
(2) The licensing authority may by rule further restrict or condition the issuance of membership interests in order to preserve ethical standards, but a rule may not cause a member at the time the rule becomes effective to become a disqualified person.