A design consultant agreement is a contract that defines the working relationship between an independent design consultant and their client. How to fill out the Agreement for Professional Design and Consulting Services?1. Review the project requirements carefully. 2. Create your own customized Consulting Agreement in minutes. Save time and print or download your contract for free. The CITY enters into this AGREEMENT in accordance with all the procedures of the Consultants' Competitive. Negotiation Act, Sec. List of all current AIA Contract Documents.