S.D. Codified Laws § 21-41-10
In any action to determine adverse claims to real property in the circuit court in which personal service was made of the summons or summons and complaint, on any nonresident defendant, in lieu of service by publication, by an officer of such foreign state and where proof of such service was made by the certificate of service of such officer making such personal service and judgment and decree was made and entered quieting the title to such real property, prior to January 1, 1992, such proof of service is hereby legalized and validated as fully as though such proof of service had been by affidavit. Any judgment or decree quieting the title to real estate based upon such proof of service shall be legal, valid, complete and effective as of the date on which said judgment and decree was filed, if otherwise properly signed and attested.
If any person has any vested right in any real property by reason of any omission referred to in this section, and if no action or proceeding to enforce such right was commenced prior to July 1, 1993, such right shall be forever barred. No action or proceeding brought involving real property shall be of any force or effect, or maintainable in any court of this state, unless prior to July 1, 1993, there was recorded in the office of the register of deeds of the county in which the real property affected is situated, a notice of the pendency of such action, in accordance with chapter 15-10.
SDCL 21-41-10