Full performance of an obligation by the party whose duty it is to perform it or by any other person on that party's behalf and with that party's assent, if accepted by the creditor, extinguishes it.
Mont. Code Ann. § 28-1-1101
Extinction of obligation by full performance
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.