- There must be an offer
- Another party has to accept the offer
- There must be consideration to be legally enforceable
2. How can those elements themselves be fulfilled?
An offer is a conditional promise to do or refrain from doing something in the future. The offeror must make an offer to the offeree and that offer must create a power of acceptance. This means that the party to whom the offer was made has the power to bind the offeror to the contract. The offer should include the parties and subject matter involved, the way in which the subject matter will be performed, and the consideration. The more detailed the offer the more legitimate it will be in court.
An acceptance must be made in some form of positive manner and must be communicated to the offeror. The offer may provide a way in which the acceptance must be communicated, but if not any reasonable method of communication will suffice.
Consideration is the exchange of value or benefit that each party agrees to give up as a result of the contractual agreement. It is what each party gets in return for the contractual performance. As long as each party is getting something in return for his or her performance, consideration is legitimate.
http://sports.espn.go.com/dallas/mlb/news/story?id=6071832
The Texas Rangers and catcher/first-basemen Mike Napoli agree to terms on a one-year deal for 5.8 million dollars. The rangers extended a contract offer that Mike Napoli agreed with. The consideration is Mike Napoli's service as a professional baseball player and his skills on the field for a paycheck provided by the Texas Rangers.