A person who deals with an agent without knowing or having reason to believe that the agent acts as an agent in the transaction may set off against any claim of the principal arising out of the transaction all claims that the person might have set off against the agent before notice of the agency.
Mont. Code Ann. § 28-10-608
Rights of person who deals with agent without knowledge of agency
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.