Contractual principles have overthrown the importance in recent times, as they are critical to establishing a solid balance and fair in contract preparation. The analysis in this regard is that the main contractual provisions with special emphasis on objective good faith and the social function of the contract, incorporated into the current Civil Code. The best known is the principle of freedom of contract in which one can conceptualize it as the freedom of the parties to stipulate the content at will contract, creating for themselves their rights and obligations under consensus and ...