South Dakota allows foreclosure by court action or by advertisement when the mortgage contains a power of sale. For an advertisement sale, publication is required at least weekly for four successive weeks, written notice to the borrower and affected lienholders is due at least 21 days before sale, and the sheriff conducts a public auction in the county where the property is located. The ordinary redemption period is one year after sale; a mortgage with the statutory 180-day clause can shorten it, including to 60 days if the property is abandoned. Check the mortgage, sale notice, certificate, and court docket for this property.