Cal. Probate Code § 2109

(a) Subject to Section 2108, a guardian appointed under subdivision (d) of Section 1514 for particular property upon a nomination made under Section 1501 has, with respect to that property, the same powers and duties as a guardian of the estate. The responsibility of such a guardian with regard to inventory, accounting, and disposal of the estate is confined to the property covered by the nomination. (b) When a guardian is appointed under subdivision (d) of Section 1514 for particular property upon a nomination made under Section 1501 and there is a guardian of the estate appointed under any other provision of Part 2 (commencing with Section 1500): (1) The guardian appointed for the property covered by the nomination manages and controls that property and the guardian of the estate manages and controls the balance of the guardianship estate. (2) Either guardian may petition under Section 2403 to the court in which the guardianship of the estate proceeding is pending for instructions concerning how the duties that are imposed by law upon the guardian of the estate are to be allocated between the two guardians.