Who can represent the Indian landowners in negotiating or granting an agricultural lease?

The following individuals or entities may represent an individual Indian landowner: (a) An adult with custody acting on behalf of his or her minor children; (b) A guardian, conservator, or other fiduciary appointed by a court of competent jurisdiction to act on behalf of an individual Indian landowner; (c) An adult or legal entity who has been given a written power of attorney that: (1) Meets all of the formal requirements of any applicable tribal or state law; (2) Identifies the attorney-in-fact and the land to be leased; and (3) Describes the scope of the power granted and any limits thereon.