Mr. O'Brien was admitted to practice law in Connecticut State Courts and Federal District Courts in 1987. He is certified as a civil trial advocate by the National Board of Trial Advocacy, the certification of which requires the applicant to pass a rigorous written rest, demonstrate a record of extensive litigation experience including numerous trials to verdict, and demonstrate compliance with the highest ethical standards of the profession.

Mr. O'Brien is also a member of the Connecticut Chapter of the American Board of Trial Advocates, a select group of plaintiff trial lawyers and defense trial lawyers, all of whom are generally recognized as among the best trial lawyers in the State of Connecticut.

He is also a member of the American Association for Justice.

Mr. O'Brien has been consistently named as one of New England's "Super Lawyers" by Connecticut Magazine. Only five percent of the attorneys in Massachusetts, Connecticut, Rhode Island, Vermont, New Hampshire and Maine are chosen each year for this high honor. Mr. O'Brien has also been consistently named in Best Lawyers in America, which is a trusted directory of top legal professional in the United States.

Mr. O'Brien is also an active seminar speaker and lecturer in the areas of trial practice and procedure. He has also served as an arbitrator for the Connecticut Superior Courts.

Mr. O'Brien specializes in the area of civil trial advocacy for personal injury victims, including automobile and truck collisions, premises liability, construction accidents, municipal liability and product defect claims. Mr. O'Brien has obtained many substantial verdicts and settlements on behalf of his clients in every area of his practice.