Such actions are improper. A contract entered into under duress by physical compulsion is void. Moreover, "if a party’s manifestation of assent to contract is induced by an improper threat by the other party that leaves the victim no reasonable alternative, the contract is voidable by the victim."

Very frequently, the question of duress happens when courts are asked to rule on the enforceability of prenuptial agreements. In agreement with counsel..."

As a estoppel are examples of affirmative defenses.

Duress is also a common ground for an annulment. No one may force another person into marriage.