S.D. Codified Laws § 51A-15-45

All real estate mortgages, assignments and satisfactions of real estate mortgages and all assignments of sheriff's certificates of sale and all sales made and deeds executed by a receiver of an insolvent suspended national bank, by the board of trustees or local liquidation committee or corporation of an insolvent suspended state bank, or by the director, in charge of an insolvent suspended state bank or by a duly appointed, qualified and acting examiner in charge, either in the name of the director, or in his own name as examiner in charge of such insolvent suspended state bank, are hereby legalized, cured and validated.