How To Write A Letter Of Agreement Between Two Non-Profits . Clearly identify both parties as well as the details of the loan. No matter what the agreement, each party has certain duties that must be performed to fulfill each side of the bargain. √ Free Printable Agreement Between Two Parties Templateral from www.templateral.com The collaboration will start on the date of this agreement end on the date set out in the plan unless client and collaborator decide to extend the term. In the first sentence of your cover letter, mention the specific position you're applying for and identify how you found out about it. Client and collaborator will each appoint one individual to act as principal contact