None of the provisions of this title shall in any manner be construed to abrogate or impair any vested rights under any preexisting contract.
S.D. Codified Laws § 13-5-29
Vested contract rights not impaired
Source: SL 1955, ch 41, ch 18, § 3; SDC Supp 1960, § 15.4003.
Official source: South Dakota Legislature. Reproduced from public-domain South Dakota statutes; confirm against the official source for the current text. Not legal advice.