About Campbell Litigation

Campbell Litigation is a litigation practice in Waterloo, Ontario that handles disputes rather than transactions. It works on two fronts: claims for injured people, and disputes involving businesses. For individuals, that means car, motorcycle, and truck collisions, brain and spinal cord injuries, wrongful death, premises liability, product liability, and professional negligence, done mainly for plaintiffs. For businesses, it covers shareholder and partnership disputes, construction claims, breach of contract, real estate litigation, and creditor-side insolvency, receivership, and mortgage enforcement. The firm runs trials and appeals in Ontario's courts, and pursues mediation and arbitration when that suits a case.

The practice was formerly known as Petker Campbell Postnikoff, and its web address and LinkedIn page still carry that name; it now operates as Campbell Litigation. Richard Campbell, the founder, has litigated since 1999 and set up the current sole practice in 2015 with a small team. A Kitchener-Waterloo native, Richard Campbell earned a Bachelor of Arts at St. Jerome's College and a law degree at Osgoode Hall Law School, and has sat as a Deputy Judge in Ontario's Small Claims Court for more than a decade. The firm says its team carries more than seventy-five years of combined litigation experience and that one member is a certified arbitrator. Everything runs out of a single Waterloo office that also serves Kitchener, Cambridge, Guelph, and Stratford.

Milestones & recognition

  • The practice was formerly known as Petker Campbell Postnikoff and now operates as Campbell Litigation; its web domain (petkerlaw.com) and LinkedIn page still carry the earlier name.
  • Richard Campbell has litigated since 1999 and established the current sole practice in Waterloo in 2015.
  • The firm's founder has sat as a Deputy Judge in Ontario's Small Claims Court for more than a decade.
  • The firm states that its team carries more than seventy-five years of combined litigation experience and that one member is a certified arbitrator.

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 appointment

Fees & payment

A clipboard with a speech bubble and a no-charge dollar coinFree consultation

The neighbourhood

The office sits at 40 Durward Place in the north end of Waterloo, near the Highway 85 Expressway and close to the Wilfrid Laurier University and University of Waterloo campuses. It's a practical business address, a pocket of small offices and light-industrial neighbours rather than a downtown tower, which suits a litigation practice that meets clients one file at a time.

The founder grew up in Kitchener-Waterloo and returned here to practise, and the firm's work maps onto the region's economy. Shareholder and partnership disputes, construction claims, and creditor enforcement follow from an area thick with small businesses, builders, and lenders, while personal injury and professional negligence claims come from across Waterloo Region and southern Ontario. The single Waterloo office covers Cambridge, Guelph, and Stratford as well, with virtual meetings where that's easier for a client.

Frequently asked questions

Does Campbell Litigation take personal injury cases?
Yes. Personal injury is a core focus, including car and motorcycle collisions, truck accidents, brain and spinal cord injuries, wrongful death, premises liability, and product liability. This work is done mainly on behalf of plaintiffs.
Can the firm help with a business or shareholder dispute?
Yes. The firm handles business and commercial litigation, including shareholder and partnership disputes, breach of contract, breach of fiduciary duty, construction disputes, and real estate litigation.
Does the firm act for lenders in insolvency and mortgage enforcement?
Yes. Its insolvency and receivership practice represents secured creditors and lenders. That covers preparing and reviewing security agreements, maintaining and enforcing security interests, appointing receivers, and mortgage enforcement. It's a creditor-side practice rather than debtor representation.
Where is Campbell Litigation, and does it serve Cambridge, Guelph, and Stratford?
The firm works out of one office at 40 Durward Place in Waterloo. It serves Kitchener, Cambridge, Guelph, Stratford, and nearby communities from there, and it offers virtual meetings when that's easier for a client.
Does the firm only go to trial, or does it also do mediation and arbitration?
It runs trials and appeals in Ontario's courts, and it also pursues mediation, arbitration, and negotiation where that's practical. The firm says one member of its team is a certified arbitrator.
The website is petkerlaw.com. Is this still Petker?
The practice was formerly Petker Campbell Postnikoff, which is why the web address and the firm's LinkedIn page still carry that name. It now operates as Campbell Litigation.

Where to find them

40 Durward Pl, Waterloo, ON, N2L 4E4 · 519-886-1204

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Listing compiled from the firm’s public website in July 2026. Verify licence status in the Law Society of Ontario directory ↗