Which of the following actions can result in a listing contract being voided?

A listing contract can be voided if the seller is under duress during the signing. Duress refers to a situation where an individual is forced or coerced into making a decision against their will, often involving threats or pressure that eliminate the free will necessary for a valid agreement. When a contract is created under such circumstances, it cannot be considered legally binding because the consent of one party was not given freely. This principle underscores the importance of voluntary agreement in contract law.

In contrast, the other situations listed do not meet the legal criteria for voiding a contract. If the seller is unable to sell the property, it may prevent the transaction from proceeding but does not void the contract itself. Similarly, if the seller fails to provide necessary documentation, this can lead to complications or delays, but it does not inherently invalidate the contract. Lastly, a buyer's failure to follow through with financing impacts the transaction's execution but does not affect the validity of the listing contract between the seller and the listing agent.