(2) the client persists in a course of action involving the lawyer's services that the lawyer reasonably believes is criminal or fraudulent;
(3) the client has used the lawyer's services to perpetrate a crime or fraud;
(4) the client insists upon taking action that the lawyer considers repugnant or with which the lawyer has a fundamental disagreement;
(5) the client fails substantially to fulfill an obligation to the lawyer regarding the lawyer's services and has been given reasonable warning that the lawyer will withdraw unless the obligation is fulfilled;
(6) the representation will result in an unreasonable financial burden on the lawyer or has been rendered unreasonably difficult by the client; or