The question of signing generally arises with dueling forms, where there's no dispute that "a" 20-page contract was signed on June 4, 2017, and that this is page 20, with all of the signatures, but... What did that contract say in Paragraph G on Page 12?
Perhaps the bank only retained page 20, and is saying that they used the same master form for every mortgage and the master form says "this" on page 12.
Or one party discovers that other has misplaced their copy of the contract and then shows up with a copy that has advantageous wording on page 12.
Perhaps the bank only retained page 20, and is saying that they used the same master form for every mortgage and the master form says "this" on page 12.
Or one party discovers that other has misplaced their copy of the contract and then shows up with a copy that has advantageous wording on page 12.