Cumming Car Accident Lawyer, Attorney Steven Leibel Personal Injury Lawyer / Auto Accident Lawyer Cumming, Georgia - Leibel Law - If you have been injured due to the negligence of another, it may benefit you to contact Leibel Law. Attorney Leibel has not only been practicing personal injury law since 1988; he has also received a 10.0 Superb Avvo Rating. The team understands how overwhelming it is to be involved in an accident—especially when you are not at fault in that accident.