An offer is a proposal from one party to another intending to create a legal obligation upon acceptance. An offer is a clear intention to enter into a legally binding agreement.It marks the first step in creating that agreement. A contract is basically an offer. It is a contract without being signed the same way a check is a check. Acceptance in contract law is when a person agrees to the terms of an offer without any changes. Initially, the court must find some basis for concluding that the parties engaged in a process of offer and acceptance, rather than inconclusive negotiations. There must be an offer and acceptance. One party must make an offer to enter into the agreement and the other party must accept the terms of the offer. The legality of purpose in contract law is the terms and conditions in legal documents that are legally binding and enforceable.