In this type of agreement, two parties enter into an agreement in which both parties guarantee to accomplish something (Lau & Johnson, 2014). Be that as it may, the components of both contracts continue as before: • Offer by the promisor • Acknowledgment by the promisor • Thought or support for the offer, similar to money • Of legal limit, meaning that both parties are free from emotional illness or slavery and • The legal terms that limit the contract obtain an expert that contains the distinct and determined ethical components