SDCL § 44-9-25: Parties to action to foreclose lien--Admission of lien holder not named as defendant--Joinder of plaintiffs.

The action to foreclose the lien may be commenced by any lien holder who has filed his lien statement as required in this chapter, and all other such lien holders who are not joined with him as plaintiffs shall be made defendants. Any such lien holder not named as a defendant may nevertheless answer the complaint and be admitted as a party. All parties having liens under this chapter may join as plaintiffs, if they so desire, prior to the commencement of any action by a single lien holder.