How to Write a Property Management Agreement? ("Broker") agree as follows: 1.The parties agree as follows: 1. The Property Manager shall manage, operate and maintain the Project in a commercially reasonable manner for the tenants thereof. A property management agreement is an essential contract that defines the relationship between property owners and property managers. A Massachusetts property management agreement is a legal document in which a landlord appoints a party to take on property management duties. This form, executed between the owner and property manager, outlines the responsibilities of each party and the agreedupon fee structure. This property management agreement is intended for real estate owners to execute with those managing their property for rental purposes. Central to this profession is a clear understanding of residential rental property lease agreements.