Cal. PROB § 1813.1

(a) (1) The domestic partner of a proposed conservatee may not petition for the appointment of a conservator for a domestic partner or be appointed as conservator of the person or estate of the proposed conservatee unless the petitioner alleges in the petition for appointment as conservator, and the court finds, that the domestic partner has not terminated and is not intending to terminate the domestic partnership as provided in Section 299 of the Family Code. However, if the court finds by clear and convincing evidence that the appointment of a domestic partner who has terminated or is intending to terminate the domestic partnership is in the best interests of the proposed conservatee, the court may appoint the domestic partner.

(2) Prior to making this appointment, the court shall appoint counsel to consult with and advise the conservatee, and to report to the court his or her findings concerning the suitability of appointing the domestic partner as conservator.

(b) The domestic partner of a conservatee shall disclose to the conservator, or if the domestic partner is the conservator, shall notify the court, of the termination of a domestic partnership as provided in Section 299 of the Family Code within 10 days of its occurrence. The court may, upon receipt of the notice, set the matter for hearing on an order to show cause why the appointment of the domestic partner as conservator, if the domestic partner is the conservator, should not be terminated and a new conservator appointed by the court.