Many attorneys incorrectly assume that an attorney-client relationship automatically ends when the work for the client is complete. That is not always the case.
Some courts have held that the attorney-client relationship continues, even after the billable work is complete, if the client has a reasonable belief that the engagement is open-ended. This issue often arises when an attorney tries to take on a new engagement adverse to a client for whom the attorney previously performed some work.
The ethics rules impose tight restrictions on when an attorney can be adverse to an existing client but provide much more liberal standards for engagements adverse to a former client. Thus, if an attorney does not confirm that an engagement has concluded, the attorney may be disqualified from taking on a future engagement adverse to a client.
Georgia Rule of Professional Conduct 1.7 generally prohibits an attorney from being adverse to an existing client unless certain conditions are met and the client consents. Moreover, with limited exceptions, it is not ethically permissible for an attorney to be adverse to an existing client in litigation, even if the litigation is wholly unrelated to the attorney's engagement for that client. 1
By contrast, Rule 1.9 requires only consent from the former client if the attorney intends to be adverse to a former client "in the same or a substantially related matter" to the lawyer's prior engagement.
No client consent is necessary if the attorney's new engagement adverse to a former client is unrelated to the prior work. Furthermore, there is no general prohibition against suing a former client.
Thus, whether it is ethically permissible for an attorney to accept a new engagement adverse to a client will often turn on the determination of whether that client is a former client or current client.2
When does a client
become a "former client"?
The comments to Georgia Rule of Professional Conduct 1.3 provide, in relevant part, the following general guidance regarding the termination of an attorney-client relationship:
"If an attorney's employment is limited to a specific matter, the relationship terminates when the matter has been resolved. If an attorney has served a client over a substantial period in a variety of matters, the client sometimes may assume that the lawyer will serve on a continuing basis."
Ga. R. Prof. Cond. 1.3 Although there is little Georgia authority applying these principles, cases from other jurisdictions (applying ethics rules analogous to the Georgia Rules of Professional Conduct) offer some relevant guidance.