A principal is bound by acts of the principal's agent under a merely ostensible authority to those persons only who have in good faith and without ordinary negligence incurred a liability or parted with value upon the faith of the authority.
Mont. Code Ann. § 28-10-606
Extent to which principal bound by acts under ostensible authority
En
Official source: Montana Code Annotated (Montana Legislature). Reproduced from public-domain Montana statutes; confirm against the official source for the current text. Not legal advice.