Cal. Welf. & Inst. Code § 15657.3

(a) The department of the superior court having jurisdiction over probate conservatorships shall also have concurrent jurisdiction over civil actions and proceedings involving a claim for relief arising out of the abduction, as defined in Section 15610.06, or the abuse of an elderly or dependent adult, if a conservator has been appointed for the plaintiff prior to the initiation of the action for abuse.
(b) The department of the superior court having jurisdiction over probate conservatorships shall not grant relief under this article if the court determines that the matter should be determined in a civil action, but shall instead transfer the matter to the general civil calendar of the superior court. The court need not abate a proceeding for relief pursuant to this article if the court determines that the civil action was filed for the purpose of delay.
(c) The death of the elder or dependent adult does not cause the court to lose jurisdiction of a claim for relief for abuse of that elder or dependent adult.
(d)
1. (1) Subject to paragraph (2) and subdivision (e), after the death of the elder or dependent adult, the right to commence or maintain an action shall pass to the personal representative of the decedent. If there is no personal representative, the right to commence or maintain an action shall pass to any of the following, if the requirements of Section 377.32 of the Code of Civil Procedure are met:
  1. (A) An intestate heir whose interest is affected by the action.
  2. (B) The decedent’s successor in interest, as defined in Section 377.11 of the Code of Civil Procedure.
  3. (C) An interested person, as defined in Section 48 of the Probate Code, as limited in this subparagraph. As used in this subparagraph, “an interested person” does not include a creditor or a person who has a claim against the estate and who is not an heir or beneficiary of the decedent’s estate.
2. (2) If the personal representative refuses to commence or maintain an action or if the personal representative’s family or an affiliate, as those terms are defined in subdivision (c) of Section 1064 of the Probate Code, is alleged to have committed abuse of the elder or dependent adult, the persons described in subparagraphs (A), (B), and (C) of paragraph (1) shall have standing to commence or maintain an action for elder abuse. This paragraph does not require the court to resolve the merits of an elder abuse action for purposes of finding that a plaintiff who meets the qualifications of subparagraphs (A), (B), and (C) of paragraph (1) has standing to commence or maintain such an action.
(e) If two or more persons who are either described in subparagraph (A), (B), or (C) of paragraph (1) of subdivision (d) or a personal representative claim to have standing to commence or maintain an action for elder abuse, upon petition or motion, the court in which the action or proceeding is pending, may make any order concerning the parties that is appropriate to ensure the proper administration of justice in the case pursuant to Section 377.33 of the Code of Civil Procedure.
(f) This section does not affect the applicable statute of limitations for commencing an action for relief for abuse of an elderly or dependent adult.