Answer:
agent of the building's owner
Explanation:
In such a scenario, the manager would normally be considered the agent of the building's owner. This is because the manager acts on behalf of the building owner since all of the tasks that they are responsible for have been specified by the owner and benefit the owner. Also, the manager deals with the building's tenants on behalf of the owner so that he does not have to take time out of his day to do so.
