2143. A mandatary who agrees to represent, for the same act, parties whose interests conflict or could conflict shall so inform each of the mandators, unless he is exempted by usage or by the fact that each of the mandators is aware of the double mandate; he shall act impartially towards each of them.
Where a mandator was not in a position to know of the double mandate, he may have the act of the mandatary declared null if he suffers injury as a result.
1991, c. 64, a. 2143; I.N. 2014-05-01; 2016, c. 4, s. 235.