Revenue and Taxation Code § 3954
CHAPTER 10. Rights of Purchaser of Tax-Deeded Property, or Any Other Person Claiming Through Him, to Bring Action to Determine Adverse Claims to or Clouds Upon Tax-Deeded Property Purchased From the State
Unknown defendants owning or claiming an interest in a special assessment shall be described in the complaint, as follows: “The owner or any person claiming an interest in a special assessment lien (here describe said lien as it is described in the bond or assessment records of the district in which it was issued).”