Board Certified Personal Injury Attorney, National Board Certified Personal Injury Attorney Seriously injured motorists and families of loved ones killed in accidents of all kinds need aggressive legal representation that gets results in negotiations with insurers and in court. We want to be that kind of dedicated, compassionate law firm for you. With offices in Wichita Falls, Texas, and Lawton, Oklahoma, we are the skilled personal injury attorneys of The Nix Law Firm. David M. Nix is a Wichita Falls injury lawyer who protects the rights of victims of accidents caused by negligence on highways, in homes and at the workplace. He is the only personal injury attorney in the Texoma region to be named a Top 100 Trial Lawyer by The National Trial Lawyers, a finalist for National Trial Lawyer of the Year, as named by the Public Justice Foundation Board-Certified in Personal Injury Trial Law by the Texas Board of Legal Specialization; nationally board-certified in Civil Trial Advocacy by the National Board of Trial Advocacy; and recognized as a Super Lawyer in Texas Monthly magazine since 2006.