S.D. Codified Laws § 44-8-2 (2026)
A power of attorney to execute a mortgage must be in writing, subscribed, acknowledged, proved, or certified and recorded in like manner as powers of attorney for grants of real property.
Source: CivC 1877, § 1730; CL 1887, § 4355; RCivC 1903, § 2051; RC 1919, § 1555; SDC 1939, § 39.0211.