California Code, Probate Code - PROB § 8547

(a) Subject to the limitations of this section, the court shall fix the compensation of the special administrator and the compensation of the attorney of the special administrator.

(b) The compensation of the special administrator shall not be allowed until the close of administration, unless the general personal representative joins in the petition for allowance of the special administrator's compensation or the court in its discretion so allows.  Compensation for extraordinary services of a special administrator may be allowed on settlement of the final account of the special administrator.  The total compensation paid to the special administrator and general personal representative shall not, together, exceed the sums provided in Part 7 (commencing with Section 10800) for compensation for the ordinary and extraordinary services of a personal representative.  If the same person does not act as both special administrator and general personal representative, the compensation shall be divided in such proportions as the court determines to be just or as may be agreed to by the special administrator and general personal representative.

(c) The total compensation paid to the attorneys both of the special administrator and the general personal representative shall not, together, exceed the sums provided in Part 7 (commencing with Section 10800) as compensation for the ordinary and extraordinary services of attorneys for personal representatives.  When the same attorney does not act for both the special administrator and general personal representative, the compensation shall be divided between the attorneys in such proportions as the court determines to be just or as agreed to by the attorneys.

(d) Compensation of an attorney for extraordinary services to a special administrator may be awarded in the same manner and subject to the same standards as for extraordinary services to a general personal representative, except that the award of compensation to the attorney may be made on settlement of the final account of the special administrator.