(1) A person who has been induced to make a declaration of intent by deceit or unlawfully by duress may avoid the declaration.
(2) Where a third party committed this deceit, a declaration that had to be made to another person may be avoided only if the latter knew of the deceit or ought to have known of it. If a person other than the person to whom the declaration was to be made acquired a right as a direct result of the declaration, the declaration made to that person may be avoided if they knew or ought to have known of the deceit.