15 GCA § 4203: Terms of Sale.

All sales must be for cash or for part cash and part deferred pay-ments, the credit in no case to exceed three (3) years from the date of sale, and the terms being subject to the approval of the court. When real property is sold upon deferred payments, the guardian must demand and receive from the purchasers, notes and a mortgage on the property sold, with such additional security as the court deems necessary and sufficient to secure the prompt payment of the amounts so deferred, and the interest thereon.