We'll be focusing on the owner architect agreement and we'll refer to some other documents that may be helpful as resources as you complete those forms. Ohio requires all architects to enter into written contracts with their clients unless the services prior to beginning work on the project.Form of Agreement Between Owner and Architect for a Residential or Small Commercial Project for several years. Typical construction contracts contain clauses which allow changes either with or without the agreement of the parties at the time the change is made. In this informative educational session where experts will examine key risks and areas of inefficiency that architectural firms face across project phases. An architect agreement is a legal document that outlines the obligations and rights of the parties involved, typically in a development project.