Montana Title 30. Trade and Commerce § 30-3-419. Conversion of instrument

(1) The law applicable to conversion of personal property applies to instruments. An instrument is also converted if the instrument lacks an indorsement necessary for negotiation and it is purchased or taken for collection or the drawee takes the instrument and makes payment to a person not entitled to receive payment. An action for conversion of an instrument may not be brought by:

(2) In an action under subsection (1), the measure of liability is presumed to be the amount payable on the instrument, but recovery may not exceed the amount of the plaintiff's interest in the instrument.

(3) A representative, other than a depositary bank, that has in good faith dealt with an instrument or its proceeds on behalf of one who was not the person entitled to enforce the instrument is not liable in conversion to that person beyond the amount of any proceeds that it has not paid out.