Peter is a certified public accountant. He agreed with Paul, medical doctor, that he would assist Paul with his tax appeal to IRD if Paul would provide a medical check-up for his wife.
Peter assisted Paul but he refused to carry out his original promises.
With the help of relevant legal cases and principles, critically analyse whether the agreement of Peter with Paul are valid in the eyes of common law.
Please kindly suggest the relevant legal cases for me, as my note does not contain any cases.