I’m leaving my law firm. May I tell the clients whose files I have worked on that I am opening my own practice?

Formal Advisory Opinion 97-3 holds that a lawyer who is leaving a firm may ethically notify those clients he or she has actively represented. The communication may be oral or written. The lawyer may advise the client of the lawyer’s departure, provide a new address and notify the client of the lawyer’s willingness to provide legal services to the client.