A formal legal document is a written agreement between two or more parties that is legally binding. It is usually used to define the rights and obligations of each party, and can be used in a variety of contexts, such as contracts, leases, wills, and other legal documents. The term 'WRIT' is a legal term that refers to a court order or command, usually issued by a judge or magistrate. A WRIT is typically used to enforce a court order or to compel someone to do something.