(a) A disbarred or suspended attorney shall promptly notify by registered or certified mail, return receipt requested, all clients being represented in pending matters, other than litigation or administrative proceedings, of theattorney's disbarment or suspension and consequent inability to act as an attorney after the effective date of the disbarment or suspension and shall advise said clients to seek legal advice elsewhere. A disbarred or suspended attorney shall promptly notify, or cause to be notified, by registered or certified mail, return receipt requested, each of the attorney's clients who is involved in pending litigation or administrative proceedings, and the attorney or attorneys for each party and each self-represented party in the pending litigation or administrative proceeding of the attorney's disbarment or suspension and consequent inability to act as an attorney after the effective date of the disbarment or suspension. The notice to be given to the client shall advise the client of the desirability of the prompt substitution of an other attorney or attorneys in place of the withdrawing attorney. In the event the client does not obtain substitute counsel before the effective date of the disbarred or suspended attorney to move in the court or agency in which the proceeding is pending for leave to withdraw.
The notice to be given to the attorney or attorneys for any other party and to any other self-represented party shall state the place of residence or other address at which the client of the disbarred or suspended attorney can be contacted.