My father died leaving three children, heirs of his estate. A brother does not wish to sign any document, including the list of people who will receive the inheritance. We need it to unlock money on bank accounts. What to do?

Article 730-1 of the French Civil Code states: "Proof of the status of heir may result from an act of notoriety drawn up by a notary at the request of one or more rights holders". The notary can draw up this act, even if it is requested only by certain heirs.