What term describes the act of obtaining consent through threats to harm a person or their property?

The correct term that describes the act of obtaining consent through threats to harm a person or their property is "duress." Duress specifically refers to a situation where an individual is forced to act against their will or make a decision due to threats or actual harm being imposed by another party. This concept is particularly important in legal contexts where a contract or agreement may be deemed invalid if it was entered into under duress, as the party did not truly give their free and informed consent.

Coercion, while similar, can encompass a broader range of pressures and manipulations that may not directly involve a threat of physical harm. Intimidation usually refers to creating fear but does not always involve the expectation of direct harm. Manipulation generally involves influencing someone’s decisions or actions in a deceitful way, rather than using threats or force.

In summary, duress directly ties to the concept of threat of harm, making it the most accurate term for describing the scenario presented in the question.