A master lease agreement pertains to the leasing and subleasing of property, while a master service agreement pertains to the provision of services. A master lease agreement is a contractual arrangement between two parties, typically a property owner (lessor) and a tenant (lessee).A master service agreement (MSA) is a fundamental contract outlining the scope of the relationship between two parties. A new investor can Master Lease with no money out of pocket and create income. The relationships and trust that a Master Lease can create are invaluable. Pima County Government services and news including Tucson, Marana, Ajo, Oro Valley, Sahuarita, Three Points and Arivaca. Knott Development was selected for the master development partnership agreement in 2021. Land lease agreements and related records, 1909-58.