Wis. Stat. § 779.09
In the foreclosure of liens mentioned in s. 779.01, ch. 846 shall control as far as applicable unless otherwise provided in this subchapter. All persons having filed claims for liens under s. 779.01 may join as plaintiffs, and if any do not join they may be made defendants. All persons having liens subsequent to such lien may be joined as defendants. If any person who is a proper party is not a party to the action the person may, at any time before judgment, be made a defendant, and any person who after the commencement of the action obtains a lien or becomes a purchaser may, at any time before judgment, be made a defendant.
Wis. Stat. § 779.09
Section 840.10(1) (a) imposes the requirement of recording a lis pendens on the plaintiff who files a complaint and on a defendant seeking relief on a counterclaim or a cross-complaint, which contains a legal description of the real estate. A defendant construction lien claimant is not a plaintiff, and no cross-claim is necessary in order for a defendant construction lien claimant to obtain a determination of the amount due it and an order for sale in a lien foreclosure action. There is no logical rationale for imposing the requirements of s. 840.10(1) (a) on a defendant construction lien claimant because it unnecessarily files a cross-claim seeking relief it is entitled to under ss. 779.09 to 779.11. Carolina Builders Corporation v. Dietzman, 2007 WI App 201, 304 Wis. 2d 773, 739 N.W.2d 53, 06-3180.