Since 1985, Warren has dedicated his legal career to representing individuals and their families in personal injury and wrongful death cases against insurance companies and resulting from motor vehicle accidents, pedestrian and bicyclist accidents, defective products, medical malpractice claims, slip and falls, and other accidents caused by negligence. He has represented thousands of people over the years who have suffered from physical injury, physical pain, mental suffering, diminished quality of life, expensive medical bills, wage loss, and diminished earning capacity, achieving outstanding settlements or trial verdicts for his clients in these cases.