formal contract definition
A formal contract is a contract where the parties have signed under seal, while an informal contract is one not under seal.A seal can be any impression made upon the document by the parties to the contract. This was traditionally done in wax stating the intentions of the parties to be bound by the contract.Only parties to a sealed documents are the people who have rights under it, thus only people party to the contract can be found liable.According to Harvey Boller, J.D. Professor of Law at Loyola University, roughly 100 percent of contracts today are informal contracts.nly parties to a sealed documents are the people who have rights under it, thus only people party to the contract can be found liable. According to Harvey Boller, J.D. Professor of Law at Loyola University, roughly 100 percent of contracts today are informal contracts.