Sample Architectural and Engineering Agreement (PDF). Sample Agreement for Architects and Engineers to use when working with The City.Architects must use written contracts when contracting to provide architectural services in California. The contractor should have the right to file a claim against the client within the AIA agreement, which would end up in your lap. This guide addresses a whole host of practical issues that tend to crop up when two architects perform services on a project. Start with a free consultation and fill out the form to get started. Federal agencies use this form to obtain information from architect-engineer (A-E) firms about their professional qualifications. In accordance with the above referenced agreement, you are authorized to perform the tasks detailed in attached. Exhibit A (Scope of Services). What is a Design Build Agreement?