California Codes, Code of Civil Procedure - CCP, Part 2 — Of Civil Actions, Title 10.5 — Partition of Real and Personal Property, Chapter 2 — Commencement of Action, Article 4 — Parties, Section 872.550
Where partition is sought as to all interests in the property, the plaintiff may join as defendants “all persons unknown claiming any interest in the property,” naming them in that manner.
Notes
Allows a plaintiff seeking partition of all interests in property to join unknown claimants as defendants using the collective designation all persons unknown claiming any interest in the property. The provision authorizes that manner of naming unknown persons when the requested partition covers every interest in the property.
Use as reference
Lexinter.net | California Code, Code of Civil Procedure - CCP § 872.550 | https://laws.lexinter.net/codes/california/code-of-civil-procedure/part-2/title-10-5/chapter-2/article-4/section-872-550