S.D. Codified Laws § 57A-3A-107
Holder as holder in due course after notice given and complaint or defense not asserted
The holder of an instrument, defined as "consumer paper" by § 57A-3A-102 may be deemed a holder in due course if the assignee gives written notice to the retail buyer as provided in § 57A-3A-106 , and the assignee receives no written notification from the retail buyer of a complaint or defense as provided in § 57A-3A-106 .
Source: SL 1973, ch 295, § 4; SDCL Supp, § 57-10A-7.