"He logs seven-figure wins like clockwork, including $82 million from GM for a young man left unable to understand danger after the crash of an Olds Delta 88."
— Lawdragon quote, February 2007

Greg has been involved in many product liability cases that have resulted in substantial verdicts and settlements. He was the lead attorney in a claim against General Motors, in which the jury, after two weeks of trial, awarded $122 million for Greg’s client, a brain-damaged child. The case later settled for a confidential amount. The National Law Journal featured this case as one of the top ten verdicts for 2002. As a result of that trial, Greg was also profiled as Litigator of the Month by The National Law Journal.

In addition to his most recent success, Greg has tried cases which have resulted in verdicts of $114.5 million, $26.25 million, $13.5 million, $12 million and $11.75 million. He has had a number of eight-figure settlements and many seven-figure verdicts and settlements. He was featured in Lawyers Weekly USA for obtaining a settlement in the amount of $1 million, in which the damage to the client was an injury to one foot. He proved significant wrongdoing on the part of the defendant. In 2003, Greg was the lead attorney in a $12 million record verdict in Lamar County, Alabama against Pro Tech, involving a defective product. In 2007 Greg settled two cases for severely injured clients where the total of the two settlements exceeded $30 million.

Greg has taught products liability at a number of seminars and at Jones Law School, who recently honored Greg by naming their mock trial competition, “The J. Greg Allen Trial Competition.” Greg was the chairman of the steering committee in Jones Law School’s effort to obtain ABA approval, which has since been accomplished. He is also a member of the advisory board for Jones Law School. Greg is a past president of the Montgomery Trial Lawyers Association and has been on the executive committee for the Alabama Trial Lawyers Association for a number of years. In addition to being a member of the board of directors for the Attorney’s Information Exchange Group (AIEG), Greg is currently the chairman of the journal committee of the Alabama Association for Justice. He is a member of the Trial Lawyers for Public Justice. Greg enjoys taking on the giant corporations on behalf of people who have been seriously injured, especially in difficult and technical cases.

He is married to the former Jane Anne Howell of Lafayette, Alabama, and they have two children. Tracy, a graduate of Birmingham Southern College, teaches at the McInnis School for the Disabled. Their son Evan is currently a student at Birmingham Southern College and will likely attend law school. The Allen’s attend Eastern Hills Baptist Church in Montgomery.