In the above entitled case, and I certify that I gave notice of my withdrawal to all persons for whom I appeared and to all other parties in the case or to. The lawyer has the option to withdraw if it can be accomplished without material adverse effect on the client's interests.The short answer is to be careful. In seeking to withdraw, you must still honor the legal and ethical duties owed to your client. In the disengagement letter, the lawyer should warn the client of applicable time limitations, deadlines, and uncompleted investigation or casework. Always terminate the relationship in writing. Need to write an attorney closing letter to clients? Attorneyclient relationship in a matter pending at the time of the departure. A lawyer must withdraw from representing a client in three circumstances. The attorney may send a letter or email correspondence if that is how they communicate with the client, telling the client they are withdrawing from the case.