Ledger in which the syndicate of co-owners records the name and mailing address of each co-owner. In order to update this ledger, article 1065 of the Civil Code of Quebec provides that a person who, by whatever means, including the exercise of a hypothecary right, shall notify the syndicate within 15 days. The register of co-owners is an integral part of the register of co-ownership and shall be kept at the disposal of any co-owner requesting it.