California Code, Probate Code - PROB § 10310

(a) Except as provided in this subdivision, at the hearing on the petition for confirmation of the sale of the real property, the court shall examine into the necessity for the sale or the advantage to the estate and the benefit to the interested persons in making the sale. If the decedent's will authorizes or directs the property to be sold, there need be no showing of the necessity of the sale or the advantage to the estate and benefit to the interested persons in making the sale.

(b) The court shall examine into the efforts of the personal representative to obtain the highest and best price for the property reasonably attainable.

(c) Any interested person may file written objections to the confirmation of the sale at or before the hearing and may testify and produce witnesses in support of the objections.