A master service agreement (MSA) is a fundamental contract outlining the scope of the relationship between two parties. A master lease agreement pertains to the leasing and subleasing of property, while a master service agreement pertains to the provision of services.Or implement additional systems under this Agreement or other master services agreements, through a mutually agreed upon Task Order;. A master lease agreement is a contractual arrangement between two parties, typically a property owner (lessor) and a tenant (lessee). A master service agreement (or MSA) is an agreement between two parties that list the terms and conditions that will govern their future business relationship. The MassGIS Director and a member of the MassGIS staff were on the procurement team that resulted in the ITS81 MSA. ITS81 companies providing GIS services. It outlines the terms of living arrangements, details rent amounts, security deposits, and outlines maintenance responsibilities. Lessee shall pay Lessor the rental installments in the aggregate amounts specified in the Equipment Schedule, without prior notice or demand. When Leased Property is installed, the parties shall promptly complete and execute a Lease Schedule in the form attached.