(a) Disciplinary Authority.

(1) An attorney admitted by the Supreme Court to practice in this State is subject to the disciplinary authority of this State, regardless of where the attorney's conduct occurs.

(2) An attorney not admitted to practice in this State is also subject to the disciplinary authority of this State if the attorney:

(A) provides or offers to provide any legal services in this State,

(B) claims to be practicing law in this State, or

(C) has an obligation to supervise or control another attorney practicing law in this State whose conduct constitutes a violation of these Rules.

(3) An attorney may be subject to the disciplinary authority of both this State and another jurisdiction for the same conduct.

(b) Choice of Law. In any exercise of the disciplinary authority of this State, the rule of professional conduct to be applied shall be as follows:

(1) for conduct in connection with a matter pending before a tribunal, the rules of the jurisdiction in which the tribunal sits, unless the rules of the tribunal provide otherwise; and

(2) for any other conduct, the rules of the jurisdiction in which the attorney's conduct occurred, or, if the predominant effect of the conduct is in a different jurisdiction, the rules of that jurisdiction shall be applied to the conduct. An attorney shall not be subject to discipline if the attorney's conduct conforms to the rules of a jurisdiction in which the attorney reasonably believes the predominant effect of the attorney's conduct will occur.