102. The fees are fair and reasonable if they are warranted by the circumstances and proportionate to the professional services rendered. In determining his fees, the lawyer must in particular take the following factors into account:(1) experience;
(2) the time and effort required and devoted to the matter;
(3) the difficulty of the matter;
(4) the importance of the matter to the client;
(5) the responsibility assumed;
(6) the performance of unusual professional services or professional services requiring special skills or exceptional speed;
(7) the result obtained;
(8) the fees prescribed by statute or regulation; and
(9) the disbursements, fees, commissions, rebates, extrajudicial costs or other benefits that are or will be paid by a third party with respect to the mandate the client gave him.