About Postnikoff Law

Postnikoff Law is a civil litigation firm in Waterloo, Ontario, headed by Jarvis Postnikoff. The practice is built around resolving disputes, and it takes on work across business and corporate matters, real estate and construction, employment, and wills and estates. The firm describes over 30 years of experience with civil disputes, and it has acted for both plaintiffs and defendants. That two-sided history shows up in the work: the firm has represented employers and employees in wrongful and constructive dismissal cases, contractors, sub-contractors and owners in construction matters, and estate trustees, beneficiaries and people not adequately provided for by an estate.

On the business side it handles shareholder and partner disputes, oppression remedy claims, winding-up applications, professional negligence, and creditor and debtor matters. The firm also drafts and reviews the paperwork around employment, including severance packages, employment contracts, and non-compete and non-solicitation clauses. There's trial experience behind the practice, along with appeals at all levels in Ontario, including the Court of Appeal for Ontario and the Divisional Court, and some matters have reached the Supreme Court of Canada. When a courtroom isn't the right venue, Postnikoff Law offers mediation across the same areas and works to settle disputes privately.

Milestones & recognition

  • Over 30 years of experience handling civil disputes.
  • Trial and appeal work at all levels in Ontario, including the Court of Appeal for Ontario and the Divisional Court, with some matters reaching the Supreme Court of Canada.

Good to know

A person using a wheelchairWheelchair accessible

The neighbourhood

Postnikoff Law works out of the Frobisher Business Centre, a commercial development on Frobisher Drive in the north end of Waterloo. It's a working office park with more than a hundred tenants rather than a downtown storefront, and it sits minutes from Conestoga Mall and the BlackBerry head offices. That north-end setting suits a litigation practice that serves clients across Waterloo Region rather than one that depends on walk-in foot traffic.

Frequently asked questions

What kind of cases does Postnikoff Law take on?
It's a civil litigation and dispute resolution firm. The work covers business and corporate disputes, real estate and construction litigation, employment matters like wrongful and constructive dismissal, and disputes over wills, estates and trusts. The firm has acted for both plaintiffs and defendants across these areas.
I think I was wrongfully dismissed. Can Postnikoff Law help?
Yes. Employment law is one of the firm's areas, and it has acted for both employees and employers in wrongful and constructive dismissal matters. The firm also reviews severance packages and employment contracts, and it handles the enforcement of non-compete and non-solicitation clauses.
Does the firm handle disputes over a will or an estate?
Yes. Postnikoff Law represents estate trustees, beneficiaries, and people who weren't adequately provided for by an estate. That work includes will challenges, will interpretation, passing of accounts, guardianship applications, and other trustee and inheritance disputes.
Can Postnikoff Law act in a shareholder or partnership dispute?
Yes. On the business and corporate side the firm handles shareholder and partner disputes, oppression remedy claims, winding-up applications, professional negligence claims, and creditor and debtor matters.
Do I have to go to court, or can a dispute be settled another way?
Not necessarily. The firm chooses the venue it sees as most appropriate for each dispute, which can mean court or a more private route. Postnikoff Law also offers mediation across all of its practice areas for parties trying to reach a resolution without a trial.
Where is Postnikoff Law located and how do I reach it?
The office is at 90 Frobisher Drive, Unit 1B (upper level), in north Waterloo, Ontario. You can call the firm at 519-886-6223 or email info@postnikofflawfirm.com.

Where to find them

90 Frobisher Drive, Unit 1B (upper level), Waterloo, ON N2V 2A1 · 519-886-6223

Similar firms in Waterloo Region

SorbaraLaw

41 lawyers · Est. 1980

SorbaraLaw is a full-service regional firm with 40+ lawyers across offices in Waterloo, Guelph, Fergus and Markham, serving individuals, businesses, institutions and governmental bodies across Ontario. Its practice sp…

Business & Corporate LawBusiness & Corporate LawImmigration LawImmigration LawReal Estate LawReal Estate LawEmployment & Labour LawEmployment & Labour Law

SV Law

44 lawyers · Est. 1960

SV Law is a full-service firm headquartered in Guelph, with additional offices in Elora and the Waterloo Region. Formerly SmithValeriote Law Firm, it traces its roots to the 1960s and now has more than forty lawyers. …

Business & Corporate LawBusiness & Corporate LawReal Estate LawReal Estate LawConstruction LawConstruction LawEmployment & Labour LawEmployment & Labour Law

Miller Thomson LLP

28 lawyers

Miller Thomson LLP is a national, full-service business law firm with offices across Canada. Its lawyers work in corporate and commercial law, litigation, real estate, construction, insurance, tax, labour and employme…

Business & Corporate LawBusiness & Corporate LawCivil Litigation & Dispute ResolutionCivil Litigation & Dispute ResolutionConstruction LawConstruction LawInsurance LawInsurance Law

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