An attorney expressing disapproval is not required to submit specific objections to declare the contract null and void. Every contract drafted in Illinois has a hidden provision.Despite its omission, every contract requires the parties to act in good faith as they proceed. UCC Section 1-203 provides: "Every contract or duty within the Act imposes an obligation of good faith in its performance or enforcement. Illinois has codified the covenant of good faith only in the adoption of the Uniform Commercial Code. Obligation of good faith. Every contract or duty within the Uniform Commercial Code imposes an obligation of good faith in its performance and enforcement.