A Master Services Agreement (MSA) is a contract that outlines the general terms and conditions between two parties for future transactions or projects. A statement of work (SOW) is an important document that outlines a project's scope, timeline, and cost between two parties usually a customer and a supplier.Are under the sole control of the School District of Palm Beach County. Permitting Authority: The School Board of Palm Beach County. Purchase and Sales Contract 101 - Writing the As Is Contract. Services and Deliverables. Palm Beach County, Florida.