Contacts are base into common law and it consists of three things; offer, acceptance, and consideration. Acceptance is understanding the contacts and the knowledge of it so you know what you are getting yourself into. Consideration a.k.a. Quid pro quo, is basically when both parties gives, its likes you give, I give sort of thing. Then we have reasonableness is regarding to the offer and accepted in the corner wall which means that aspect of mutuality, is basically mutual understanding of what a contract is.
The ADT case falls under Diversity Jurisdiction because the amount asked by Shakeri was over $75,000. Since the plaintiffs were from Texas, and ADT Security Services Headquarters were located in Boca Raton, Florida, the part of the jurisdiction