PG here you go,
The property management and brokerage agreement governs a single managed property located at...blah blah..and referred to here as collectively as "Property" and is entered from date blah blah to blah blah, between Owner of the house(Me) and Broker/Designated Property manager(John Doe), by and through its authorized Agent(Mary Jane) who is duly licensed to manage the property
Owner(me) emplys the Broker/Designated property manager(John Doe) as the sole exclusive Agent of Owner to lease and manage the Property.
What do you think now? I think the Designated Broker can be sued for breach of fiduciary duty.

