When Written Contract May Be Revised By Court

Mont. Code Ann. § 28-2-1611, under Modification of Contracts.

Mont. Code Ann. § 28-2-1611

When, through fraud or a mutual mistake of the parties or a mistake of one party while the other at the time knew or suspected, a written contract does not truly express the intention of the parties, it may be revised on the application of a party aggrieved so as to express that intention, so far as it can be done without prejudice to rights acquired by third persons in good faith and for value.