S.D. Codified Laws § 43-25-26
Current with legislation signed by the governor on or before 3/6/2024
The execution of a grant of an estate in real property, other than an estate at will or for a term not exceeding one year, if it is not duly acknowledged, must, to entitle the grant to be recorded, be proved by a subscribing witness, or as otherwise provided in §§ 43-28-8 and 43-28-10.
SDCL 43-25-26