The destruction or cancellation of a written contract or of the signature of the parties liable thereon with intent to extinguish the obligation thereof extinguishes it as to all the parties consenting to the act.
Mont. Code Ann. § 28-2-1702
Extinction of written contract by destruction or cancellation
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.