Cal. PROB § 1813

(a) (1) The spouse of a proposed conservatee may not petition for the appointment of a conservator for a spouse 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 spouse is not a party to any action or proceeding against the proposed conservatee for legal separation of the parties, dissolution of marriage, or adjudication of nullity of their marriage. However, if the court finds by clear and convincing evidence that the appointment of the spouse, who is a party to an action or proceeding against the proposed conservatee for legal separation of the parties, dissolution of marriage, or adjudication of nullity of their marriage, or has obtained a judgment in any of these proceedings, is in the best interests of the proposed conservatee, the court may appoint the spouse.

(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 spouse as conservator.

(b) The spouse of a conservatee shall disclose to the conservator, or if the spouse is the conservator, shall disclose to the court, the filing of any action or proceeding against the conservatee for legal separation of the parties, dissolution of marriage, or adjudication of nullity of the marriage, within 10 days of the filing of the action or proceeding by filing a notice with the court and serving the notice according to the notice procedures under this title. The court may, upon receipt of the notice, set the matter for hearing on an order to show cause why the appointment of the spouse as conservator, if the spouse is the conservator, should not be terminated and a new conservator appointed by the court.