Cal. R. 7.706
Notwithstanding the provisions of the decedent's will, a personal representative who is an attorney may receive the personal representative's compensation but may not receive compensation for legal services as the attorney for the personal representative unless the court approves the right to compensation for legal services in advance and finds the arrangement is to the advantage, benefit, and best interest of the decedent's estate.
A law firm of which the personal representative is a partner or shareholder may request compensation for legal services in addition to the personal representative's compensation if a written agreement not to participate in each other's compensation, signed by the personal representative and by authorized representatives of the law firm, has been filed in the estate proceeding.
Cal. R. Ct. 7.706