B-1, r. 3.1 - Code of Professional Conduct of Lawyers

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147. A lawyer advertising lump-sum fees must:(
(1)  establish fixed prices;
(2)  specify the nature and extent of the professional services included in the fees and, where applicable, any other services included therein;
(3)  indicate whether disbursements and taxes are included in the fees; and
(4)  indicate whether other professional services might be required which are not included in the fees.
The details and indications must be of such a nature as to adequately inform persons who have no particular knowledge of the field of law.
O.C. 129-2015, s. 147.