California Code, Probate Code - PROB § 10258

(a) On petition of the personal representative, the court may by order authorize a sale of personal property on credit on terms providing for less than 25 percent of the purchase price to be paid in cash at the time of sale, or may waive or modify the requirement that a security interest or other lien shall be retained or taken to secure payment of the balance of the purchase price, where it is shown that the terms are to the advantage of the estate and the property to be sold is of such a nature that it is impracticable to sell the property for a larger cash payment at the time of sale or to retain a security interest or other lien in the property. The order of the court shall fix the terms and conditions of the sale.

(b) Notice of the hearing on the petition shall be posted as provided in Section 1230 and given as provided in Section 1220 to all of the following persons: