Va. R. Prof. Conduct 1.6

(b) To the extent a lawyer reasonably believes necessary, the lawyer may reveal:

(3) such information which clearly establishes that the client has, in the course of the representation, perpetrated upon a third party a fraud related to the subject matter of the representation;

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(c) A lawyer shall promptly reveal:

(1) the intention of a client, as stated by the client, to commit a crime and the information necessary to prevent the crime, but before revealing such information, the attorney shall, where feasible, advise the client of the possible legal consequences of the action, urge the client not to commit the crime, and advise the client that the attorney must reveal the client’s criminal intention unless thereupon abandoned, and, if the crime involves perjury by the client, that the attorney shall seek to withdraw as counsel;