Section 872.550.

Cal. Code of Civil Procedure - CCP § 872.550.
in effect
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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.
Source: CA Legislative Counsel Bulk DataURL: https://downloads.leginfo.legislature.ca.gov/pubinfo_2025.zipFetched: 6/27/2026

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