SDCL § 21-41-4: Joinder of parties plaintiff.

Any number of persons may be joined as plaintiffs in an action brought pursuant to § 21-41-1, where one or more defendants are proper defendants as to all such plaintiffs, without regard to whether all plaintiffs have an interest in all real estate involved, and the finding of the court in said action that one or more defendants are proper defendants as to all such plaintiffs shall be conclusive upon that question; the provisions of this section shall be so construed that it will in no matter limit any rights which would have existed under § 21-41-1 as to the joinder of plaintiffs if this section had not been enacted.