Cancellation of sale agreement

Dear Querist,

If the consent to the agreement was obtained by means of i) Undue influence (Mental Domination to obtain unfair advantage) ii) Misrepresentation, iii) Coercion or iv) Fraud - then you would be within your right to rescind/cancel/terminate/avoid the contract, by serving him a legal notice, followed by a suit for recission if required. Though you'd have to make good any amounts/benefits already recieved.