Welfare and Institutions Code § 15657.7
ARTICLE 8.5. Civil Actions for Abuse of Elderly or Dependent Adults
An action for damages pursuant to Sections 15657.5 and 15657.6 for financial abuse of an elder or dependent adult, as defined in Section 15610.30, shall be commenced within four years after the plaintiff discovers or, through the exercise of reasonable diligence, should have discovered, the facts constituting the financial abuse.