The following individuals or entities may represent an individual Indian landowner:
An adult with custody acting on behalf of his or her minor children;
A guardian, conservator, or other fiduciary appointed by a court of competent jurisdiction to act on behalf of an individual Indian landowner;
An adult or legal entity who has been given a written power of attorney that:
Meets all of the formal requirements of any applicable tribal or state law;
Identifies the attorney-in-fact and the land to be leased; and
Describes the scope of the power granted and any limits thereon.