According to the provided content, if a contract is entered into based on advice that has been influenced by a vitiating factor, such as undue influence, the entire contract shall be vitiated. This means that even if all other terms of the contract are lawful, the contract cannot stand because the consent of one party (Ted) was not freely given due to the influence of the advisor (Jan). As Jan had not gained education to understand the repercussions of different terms in the contract, her advice could not be trusted. Therefore, Ted would not be required to transfer the share in the name of Belinda.