What is a common way an agency relationship can be terminated?

An agency relationship is often established to carry out a specific task or purpose, such as selling a property or managing a real estate transaction. Once the task or purpose has been fulfilled, such as the successful completion of a sale or rental, the agency relationship typically comes to an end. This serves to protect both the principal and the agent, as the agent is no longer obligated to represent the principal after the purpose is completed.

The other options do not generally result in the termination of an agency relationship. The increasing market value of a property does not dissolve the agency; rather, it may influence decisions about the property or transactions related to it. Similarly, a change in agency rules may not immediately impact any specific agency relationship unless those rules directly affect the terms of the agreement. A request from a buyer does not inherently terminate the relationship between the agent and the principal, as the agent's duties are primarily towards the principal they represent.