48. Unless it is at an inopportune time, a lawyer may, for serious reasons, cease acting for a client.
The following, in particular, constitute serious reasons:
(1) when there is a loss of confidence between the lawyer and the client;
(2) when the client has deceived the lawyer, failed to cooperate with the lawyer or acted without taking the lawyer’s advice into account;
(3) when the client, after reasonable notice, refuses to pay disbursements and fees to the lawyer or a provision therefor; or
(4) when the lawyer is in a situation of conflict of interest or in a context in which his professional independence could be called into question.