Final answer:
The fiduciary duty that may continue after the transaction closes is the duty of disclosure.
Step-by-step explanation:
The fiduciary duty that may continue even after the transaction closes is the duty of disclosure.
This duty requires the fiduciary to provide complete and accurate information to the party they owe the duty to.
For example, in a business transaction, if a party fails to disclose any material information that may affect the other party's decision to enter into the transaction, they may be held liable even after the transaction is completed.