Which of the following contracts must be in writing? Multiple Choice Constantin sold an acre of land to Jalen, the contract was a handshake deal where they agreed orally to transfer the land in consideration of $20,000. Carson agreed to work for Huge Corp as a senior manager in consideration of $40,000 a month, it was 12-month contract. All of the contracts must be in writing. Monica agreed to do legal consulting work for Asher in consideration of $501