Article 173.1 Inviolability of a transaction made without the consent of a third person, a body of a legal person or a public authority or a local self-government body required by law

1. A transaction made without the consent of a third person, a body of a legal person or a public authority or a local self-government body required by law If the law does not indicate that it is null and void or has no legal effect on the person authorized to give consent in the absence of such consent, it may be deemed to be inconvenient. The law or, in the cases provided for by it, an agreement with the person whose consent to the transaction is required may be established by law. 2. Since the law does not establish otherwise, a contested transaction has been made without the necessary consent to the transaction. acon the consent of a third party, a body of a legal person or a public authority or a local government body may be declared invalid if it is proved that the other party to the transaction 3. A person who has given the legally required consent to the contested decision to do so, or should have been aware of the absence of the necessary consent of such person or authority at the time of the transaction. The elks are not entitled to challenge it on the basis that the person knew or ought to have known at the time of the expression of consent.