(1) Unless otherwise specified in this chapter, a document required by this chapter to be filed with or delivered to the secretary of state must be executed:
(a) by any manager if management of the limited liability company is vested in one or more managers or by a member if management of the limited liability company is reserved to the members;
(b) if the limited liability company has not been formed, by the person or persons forming the limited liability company; or
(c) if the limited liability company is in the hands of a receiver, trustee, or other court-appointed fiduciary, by that fiduciary.
(2) The person executing the document shall sign it and state, beneath or opposite the signature, the person's name and the capacity in which the person signs.
(3) The person executing the document may do so as an attorney-in-fact. Powers of attorney relating to the execution of the document do not need to be shown to or filed with the secretary of state.