1709. A person charged with the sale of property of another may not acquire such property, even through an intermediary; the same applies to a person charged with administration of property of another or with supervision of its administration, subject, for the administrator, to article 1312.
Furthermore, such a person may not sell his own property for a price paid out of the property or patrimony which he administers or of which he supervises the administration.
In no case may such a person apply for annulment of the sale.