Appellate Practice Attorney serving New York, NY
It appears that these were offers to settle a dispute. If you accepted them, they could have created a binding contract which superceded the terms of the original contract, but if you did not accept them before they were revoked, they are not binding.
The above depends on the exact terms of your original contract, which could contain a provision providing, for example, that its terms could only be modified by a writing signed by both parties and notarized. This would not bar a claim that the offers were accepted and became enforceable (because the signing provision could have been waived) but would make it more difficult to argue that position.
Answered on Aug 09th, 2017 at 1:35 PM