S.D. Codified Laws § 21-45-47
All sales of real property made pursuant to partition proceedings which were confirmed by an order or judgment of the court in which said sales were held prior to January 1, 1992, are hereby in all things legalized, cured, and validated as fully as if said sale and the partition proceedings in reference thereto had been made in full compliance with all existing laws.
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 21-45-47