A provision in a will purporting to penalize an interested person for contesting the will or instituting other proceedings relating to the estate is unenforceable if probable cause exists for instituting proceedings.
S.D. Codified Laws § 29A-2-517
Penalty clause for contest
Source: SL 1995, ch 167, § 2-517.
Official source: South Dakota Legislature. Reproduced from public-domain South Dakota statutes; confirm against the official source for the current text. Not legal advice.