Learn what a letter of agreement is and how to write one, including a template and example to help you get started crafting your own. A letter agreement is a written legal document that is made between two parties who want a simple way to make their discussions of a transaction official.How to fill out the Owner-Contractor Agreement for Nevada Projects? A Letter of Intent is a written document that serves as an initial agreement between two parties concerning the terms of a possible purchase or transaction. Customize any template in minutes with PandaDoc. PROJECT MANAGER (if applicable). The parties agree that. A Letter of Agreement is a document that outlines the terms and conditions of an agreement between two parties, like a more concise version of a contract. California Department of. NOTE: Edge is the recommended browser for all site content.