Section 2: Validity of the contract

In synallagmatic contracts, lack of equivalence of performance is not a ground for nullity of the contract, unless the law provides otherwise.

A contract for valuable consideration is void where, at the time of its formation, the consideration agreed for the benefit of the person making the commitment is illusory or derisory.

Any clause that deprives the debtor’s essential obligation of its substance is deemed unwritten.

In a contract of adhesion, any non-negotiable clause, determined in advance by one of the parties, which creates a significant imbalance between the rights and obligations of the parties to the contract shall be deemed unwritten. The assessment of the significant imbalance does not relate either to the main subject matter of the contract or to the adequacy of the price to the service.