How to write a letter of agreement Title the document. Add the title at the top of the document. List your personal information. Include the date. Add the recipient's personal information. Address the recipient. Write an introduction paragraph. Write your body. Conclude the letter.
Following are the key pieces of information that should be spelled out within the buy-sell agreement: List of triggering buyout events. List of partners or owners involved and their current equity stakes. A recent valuation of the company's overall equity. A funding instrument, such as life insurance policies.