Iowa City, IA

James P. Hayes

James P. Hayes is a founding partner at Hayes Lorenzen Biderman Lawyers, PLC, with over 60 years of experience in trial practice. He previously served as Iowa Deputy Commissioner of Public Safety and Director of the Iowa Crime Commission. His practice focuses on personal injury cases, including medical neglect, vehicular accidents, product failures, and brain injuries, notably representing athletes with CTE. He is a fellow of the American College of Trial Lawyers and the Iowa Academy of Trial Lawyers.

Karen A. Lorenzen

Karen A. Lorenzen is a founding partner at Hayes Lorenzen Biderman Lawyers, PLC, with over 30 years of legal experience. She earned her J.D. from the University of Iowa College of Law and previously worked at Foley and Lardner in Orlando. Her practice areas include medical malpractice, motor vehicle accidents, nursing home cases, personal injury, products liability, and business litigation. She is a fellow of the American College of Trial Lawyers and the Iowa Academy of Trial Lawyers, and is listed in 'Best Lawyers in America'.

William J. Bribriesco

William J. Bribriesco is an attorney specializing in Personal Injury, Nursing Home Negligence, and Medical Malpractice. He graduated from the University of Iowa with a B.B.A. in Finance and Financial Economics and a J.D. in 1980. He served as an Assistant County Attorney from 1981-1984 and has dedicated over 35 years to representing victims. He is bilingual and has served on the Board of Governors for the Iowa Association for Justice.

Michael Hayes Biderman

Michael Hayes Biderman is the managing partner at Hayes Lorenzen Biderman Lawyers, PLC, with nearly two decades of experience. He received both his undergraduate and law degrees from the University of Iowa. Prior to joining the firm, he worked at the Alaska Public Defender Agency, gaining extensive trial experience. His practice focuses on representing plaintiffs in medical malpractice, motor vehicle accidents, fertility fraud, and personal injury cases. He is a fellow of the Iowa Academy of Trial Lawyers and the American College of Trial Lawyers.

Eashaan Vajpeyi

Eashaan Vajpeyi is a shareholder and attorney at Ball, Kirk & Holm, P.C., focusing on personal injury litigation and appellate work. He is a Fellow in the Iowa Academy of Trial Lawyers, Member of the American Board of Trial Advocates, and International Society of Barristers. He has achieved over $31,000,000 in verdicts and settlements in 13 years of practice and has never lost a verdict on appeal. He is a past President of the Iowa Association for Justice.

Pope S. Yamada

Pope Yamada grew up in Iowa City and, after attending Wesleyan University and working in the technology industry, returned to Iowa to pursue a law career. He graduated from the University of Iowa College of Law in 2003 and practices at Phelan Tucker Law Offices, focusing on medical malpractice defense, health care law, and representing healthcare professionals. He is admitted to practice in Iowa and is a member of several bar associations, including the Iowa Academy of Trial Lawyers and the Association of Defense Trial Attorneys. He is actively involved in the Iowa City community, having served on multiple local boards.

James K. Weston

James K. Weston has maintained an active civil trial practice for more than 25 years, based in Iowa City and trying cases across Iowa. He is a Fellow of the Iowa Academy of Trial Lawyers and an Associate of the American Board of Trial Advocates. He is active in the Iowa State Bar Association and frequently speaks to lawyers groups on trial practice, civil litigation, insurance law, and ethics. He handles a variety of civil cases, including personal injury, defamation, insurance, business law, and contracts.