A provision in a will purporting to penalize any interested person for contesting the will or instituting other proceedings relating to the estate is unenforceable if probable cause exists for instituting proceedings. Source: SL 1994, ch 232 , § 3-905.
Penalty clause for contest
SDCL § 29A-3-905 — under PROBATE OF WILLS AND ADMINISTRATION.
SDCL § 29A-3-905