[header] How to write an agreement between two parties [title] Provide full legal names and contact information for each party. [step] To have a legally enforceable agreement, you must provide sufficient information that each party can be identified and located. [substeps] If one or both of the parties is a business entity such as a corporation or limited liability company, the party signing the agreement should be identified as well as the company. 
Parties signing on behalf of a business should include their titles within the business. Typically only certain people can enter agreements that would bind the company as a whole.