Cal. Civ. Proc. Code § 425.55
(a) The Legislature finds and declares all of the following:
(b) For the purposes of this article, “high-frequency litigant” means a person, except as specified in paragraph (3), who utilizes court resources in actions arising from alleged construction-related access violations at such a high level that it is appropriate that additional safeguards apply so as to ensure that the claims are warranted. A “high-frequency litigant” means one or more of the following:
(2) An attorney who has represented as attorney of record 10 or more high-frequency litigant plaintiffs in actions that were resolved within the 12-month period immediately preceding the filing of the current complaint alleging a construction-related accessibility violation, excluding all of the following actions: