No trustee so long as he remains in the trust may undertake another trust adverse in its nature to the interest of his beneficiary in the subject of the trust without the consent of the latter.
S.D. Codified Laws § 55-2-5
Trustee not to assume a trust adverse to the interest of beneficiary
Source: SDC 1939, § 59.0110.
Official source: South Dakota Legislature. Reproduced from public-domain South Dakota statutes; confirm against the official source for the current text. Not legal advice.