A change in a legal document agreed to by the parties and binding upon them.
Such consensual alteration is usually evidenced by the signing by each party of his or her initials and the date on which the agreement to the changes to the instrument is made.
"Consensual Alteration." West's Encyclopedia of American Law. . Encyclopedia.com. (January 22, 2019). https://www.encyclopedia.com/law/encyclopedias-almanacs-transcripts-and-maps/consensual-alteration
"Consensual Alteration." West's Encyclopedia of American Law. . Retrieved January 22, 2019 from Encyclopedia.com: https://www.encyclopedia.com/law/encyclopedias-almanacs-transcripts-and-maps/consensual-alteration