S.D. Codified Laws § 43-30 app. 5-18
Current with legislation signed by the governor on or before 3/6/2024
A conveyance or encumbrance executed by an attorney in fact on behalf of the principal must identify the principal in the body of the instrument. The attorney in fact must then sign the name of the principal and his or her own name as attorney in fact, although it is permissible to type the name of the principal.
SDCL app TO CHAPTER 43-30 § 5-18