About Katzman, Wylupek LLP

Katzman, Wylupek LLP is a personal injury firm based in Windsor, Ontario, formed in 1990 when Marc Katzman and David Wylupek started the practice together. The firm represents injury victims across Windsor, Chatham-Kent, and Sarnia in claims arising from car accidents, motorcycle and bicycle collisions, slip and falls, dog bites, nursing home abuse, and disability or accident benefit disputes, and it accepts personal injury clients without any upfront payment.

The Windsor office sits close to the bridge and tunnel crossing to Detroit, Michigan, and the Sarnia office is a similarly short drive from the bridge to Port Huron, Michigan. Katzman, Wylupek has used that position to represent American clients hurt in accidents in Canada, coordinating with a network of law firms in the United States and arranging hospital visits for clients too injured to travel. The Chatham and Sarnia offices operate by appointment, while Windsor is the firm's main location, and the firm offers a free consultation before a client decides to retain it.

Practice areas

In the community

  • Norm Groleau has volunteered with the International Red Cross and the United Way, and has instructed and coached secondary school students through the Canadian Bar Association's Law Day program.
  • Patrick J. Sonoski has volunteered as a coach for youth soccer, hockey, and baseball, and has served as president of the Leamington Senior Hockey League.
  • Founding partner Marc Katzman is a past president of Congregation Beth El in Windsor.

Good to know

A person using a wheelchairWheelchair accessibleA gold parking sign with a green checkmarkFree parkingA laptop showing a video callVirtual appointmentsA calendar with a checkmark beside a clockBy appointmentAn office interior with a desk and chairsIn-person services

Fees & payment

A shield with gold coins, a dollar sign and a checkmark sealContingencyA clipboard with a speech bubble and a no-charge dollar coinFree consultation

Offices 3

1427 Ouellette Ave, Windsor, ON N8X 1K1

405 Riverview Drive, Suite 301, Chatham, ON N7M 5J5

201 Front Street North, Suite 410, Sarnia, ON N7T 7T9

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This listing was generated by AI from public sources in September 2026. It may contain errors, and we can’t guarantee it’s accurate or complete. Before you rely on anything here, verify it on the firm’s own website. Verify licence status in the Law Society of Ontario directory ↗

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