Of course, this doesn`t tell you everything you need to know about contracts, but it`s a good start. If you have the five key elements of a contract, you have a binding agreement, but to give you the best protection, you still have to think about it: in economic cases, the courts do not easily accept that a company commits to entering into an agreement that it deems unfair or that it contains inappropriate conditions. Once you have prepared the contract and all parties agree, you decide which parties should sign the contract. In the case of simple contracts concluded between two or more persons, the persons concerned must sign. In the case of contracts between individuals and companies or between companies, you must identify a person authorized to sign on behalf of the company or legal person. A person who signs the contract without the proper authority to do so does not always result in an unenforceable contract, but it is always a good idea to visit the company`s statutes to find the right person. Most of the principles of the Common Law of Contracts are described in the Restatement of the Law Second, Contracts published by the American Law Institute. The Single Commercial Code, the original articles of which have been reproduced in almost all countries, is a legal right that governs important categories of contracts. .