B-1, r. 3 - Code of ethics of advocates

Full text An advocate who practises within a partnership or joint-stock company shall ensure that the fees and costs of professional services rendered by advocates are always indicated separately on every invoice or statement of fees that the partnership or joint-stock company sends the client, except where a lump-sum payment has been agreed upon in writing with the client. However, in the latter case, the statement or invoice shall describe the professional services rendered by the advocate.
O.C. 351-2004, s. 56.