Cal. PROB § 2401.1

The guardian or conservator shall use ordinary care and diligence to determine whether the ward or conservatee owns real property in a foreign jurisdiction and to preserve and protect that property. What constitutes use of ordinary care and diligence shall be determined by all the facts and circumstances known, or that become known, to the guardian or conservator, the value of the real property located in the foreign jurisdiction, and the needs of the ward or conservatee. The guardian or conservator, except as provided in subdivision (a) of Section 1061 and in Section 1062, is not charged with, and shall have no duty to inventory or account for the real property located in a foreign jurisdiction, but the guardian or conservator shall, when presenting the inventory and appraisal and accounting to the court, include the schedule set forth in subdivision (h) of Section 1063.