S.D. Codified Laws § 29A-6-425

A purchaser for value of property or a lender who acquires a security interest in the property from a beneficiary of a transfer on death deed after the death of the owner, in good faith, takes the property free of any claims of or liability to the owner's estate, creditors of the owner's estate, persons claiming rights as beneficiaries under the deed or heirs of the owner's estate, in absence of actual knowledge that the transfer was improper or that the information in an affidavit of confirmation, if any, provided pursuant to § 29A-6-432, is not true; and, a purchaser or lender for value has no duty to verify sworn information relating to the deed.