If you're asking whether you need a lawyer to draft a contract, legally, the answer is no. Anyone can draft a contract on their own and as long as the elements above are included and both parties are legally competent and consent to the agreement, it is generally lawful.
How to write an agreement letter Title your document. Provide your personal information and the date. Include the recipient's information. Address the recipient and write your introductory paragraph. Write a detailed body. Conclude your letter with a paragraph, closing remarks, and a signature. Sign your letter.
The Michigan Statute of Frauds, however, requires certain contracts to be in writing in order to be legally enforceable in court.