Personal injury law firm O'Brien & Zehnder Law Firm was formed with one thought in mind: "Justice for injured victims". We handle a wide variety of personal injury cases, ranging from construction site accidents to product liability and medical malpractice actions. As personal injury attorneys we have the experience, expertise and resources to take on any defendant, large or small, and ensure justice for our clients. As auto accident lawyers we are skilled and have plenty of experience in handling complex auto accident cases. Our record over the past 18 years proves our success, followed by favorable lawsuits and verdicts in court.