When you want to define the terms of a working relationship between two or more parties, consider writing a letter of agreement. Discover a sample agreement template that can be easily adapted to your specific situation.A simple agreement letter template so you can fill in the details and get it signed. Fill, deliver, and sign this free agreement in minutes! Create a Letter of Agreement (LOA) using our free DIY printable template. Remind someone of their legal duties to you before initiating legal proceedings. A. During and at the completion of the Residency Period, Sponsor agrees to: 1. Provide its professional services as administrator of the this program,. 2. Looking for a sample roommate agreement to make sure your living situation goes smoothly? We've got you covered from rent to rules.