Which of the following is a duty of an agent after the termination of an agreement?

After the termination of an agreement, one of the primary duties of an agent is to account for all money and property. This responsibility is critical because it ensures that any funds or assets that were in the agent's possession during the course of the agreement are properly documented and returned to the rightful owner or disclosed as needed. This duty upholds the principle of transparency in the agent-client relationship, which is essential for maintaining trust and professionalism in the field.

In contrast, other options present duties that would not typically apply following the termination of an agreement. For example, transferring property titles is an action that generally occurs during the life of the agreement when a sale or lease is being executed, rather than after termination. Disclosing previous clients could violate confidentiality agreements and is not a standard duty post-termination, and modifying agreements is also unlikely post-termination as any changes would pertain to an existing agreement rather than a terminated one. Thus, the correct option reflects a fundamental ongoing responsibility that persists even after the formal relationship has ended.