Absent aggravating or mitigating circumstances, upon application of the factors set out in Standard 3.0, the following discipline is generally appropriate in cases involving conflicts of interest:
4.31. Disbarment is generally appropriate when a lawyer, without the informed consent of a client or clients:
(a) Engages in representation of a client knowing that the lawyer's interests are adverse to the client's, with the intent to benefit the lawyer or another, and causes serious or potentially serious injury to the client; or
(b) Simultaneously represents clients that the lawyer knows have adverse interests, with the intent to benefit the lawyer or another, and causes serious or potentially serious injury to a client;
(c) Represents a client in a matter substantially related to a matter in which the interests of a present or former client are materially adverse, and knowingly uses information relating to the representation of a client with the intent to benefit the lawyer or another, and causes serious or potentially serious injury to a client.
4.32. Suspension is generally appropriate when a lawyer knows of a conflict of interest and does not fully disclose to a client the possible effect of that conflict and causes injury or potential injury to a client.
4.33. Public reprimand is generally appropriate when a lawyer is negligent in determining whether the representation of a client may be materially affected by the lawyer's own interests, or whether the representation will adversely affect another client, and causes injury or potential injury to a client.
4.34. Private reprimand is generally appropriate when a lawyer engages in an isolated instance of negligence in determining whether the representation of a client may be materially affected by the lawyer's own interests, or whether the representation will adversely affect another client, and causes little or no actual or potential injury to a client.
Ala. S. Att'y Discip., SECTION II, C, Standard 4.0, Standard 4.3