Montana Title 28. Contracts and Other Obligations § 28-1-407. When prior performance of conditions excused

If a party to an obligation gives notice to another, before the latter is in default, that the party will not perform the obligation and does not retract the notice before the time at which performance upon that party's part is due, the other party is entitled to enforce the obligation without previously performing or offering to perform any conditions upon the other party's part in favor of the party giving notice.