Article 158. The form of transactions.
1. Transactions are made orally or in writing (simple or notarial). 2. A transaction that can be made orally is considered to be completed even when it is clear from the behavior of the person his will to complete the transaction. 3. Silence is recognized as an expression of the will to make a deal in cases provided for by law or by agreement of the parties.
Links to other articles of chapter 9. Transactions: