Cal. Prob. Code § 1821
(a)
(1) The petition shall request that a conservator be appointed for the person or estate, or both, shall specify the name, address, and telephone number of the proposed conservator and the name, address, and telephone number of the proposed conservatee, and state the reasons why a conservatorship is necessary. Unless the petitioner or proposed conservator is a bank or other entity authorized to conduct the business of a trust company, the petitioner or proposed conservator shall also file supplemental information as to why the appointment of a conservator is required. The supplemental information to be submitted shall include a brief statement of facts addressed to each of the following categories:
(C) Alternatives to conservatorship considered by the petitioner or proposed conservator and reasons why those alternatives are not suitable, alternatives tried by the petitioner or proposed conservators, if any, including details as to the length and duration of attempted alternatives and the reasons why those alternatives do not meet the conservatee’s needs. Those alternatives include, but are not limited to, all of the following:
(b) The petition shall set forth, so far as they are known to the petitioner or proposed conservator, the names and addresses of the spouse or domestic partner, and of the relatives of the proposed conservatee within the second degree. If no spouse or domestic partner of the proposed conservatee or relatives of the proposed conservatee within the second degree are known to the petitioner or proposed conservator, the petition shall set forth, so far as they are known to the petitioner or proposed conservator, the names and addresses of the following persons who, for the purposes of Section 1822, shall all be deemed to be relatives:
(c) If the petitioner or proposed conservator is a professional fiduciary, as described in Section 2340, who is required to be licensed under the Professional Fiduciaries Act (Chapter 6 (commencing with Section 6500) of Division 3 of the Business and Professions Code), the petition shall include the following:
(2) Unless a petition for appointment of a temporary conservator that contains the statements required by this paragraph is filed together with a petition for appointment of a conservator, both of the following:
(d) If the petition is filed by a person other than the proposed conservatee, the petition shall include a declaration of due diligence showing both of the following:
(j)
(1) In the case of an allegedly developmentally disabled adult, the petition shall set forth the following: