Final answer:
A property manager is an agent who operates under a property management agreement to handle various aspects of a landlord's property, maintaining its value and income generation.
Step-by-step explanation:
An agent who acts within the scope of the property management agreement on behalf of the landlord is known as a property manager. In a property management context, agents are professionals who ensure that the landlord's property is maintained, manage finances related to the property, and may also market the property to prospective tenants. They act on behalf of the landlord to preserve the value of the property while generating income.