Final answer:
A court would likely not enforce the agreement between Stan and Kay due to duress.
Step-by-step explanation:
In this case, a court would likely not enforce the agreement between Stan and Kay. The reason for this is that the agreement appears to involve duress, where Stan is using the potential harm to Kay's family as a means to get her to agree to sell the house for less than its value. Duress renders a contract voidable, meaning the injured party can choose to cancel the contract without penalty. In general, courts are hesitant to enforce agreements that are obtained through threats or coercion. Therefore, in this situation, a court would likely not enforce the agreement.