About Postnikoff Law

Jarvis Postnikoff brings over 30 years of experience with civil disputes to Postnikoff Law, the Waterloo, Ontario firm Jarvis heads. With the team, Jarvis gives clients of many kinds a wide range of guidance and support.

Postnikoff Law has acted for plaintiffs and for defendants. The firm counts that as a real help to the people it represents, since it means knowing in depth how an opposing party may approach the dispute.

When a matter needs a courtroom, Jarvis has significant trial experience and has conducted numerous trials. Jarvis has also represented clients on appeals at all levels in Ontario, the Court of Appeal for Ontario and the Ontario Divisional Court included, and has had matters go on to the Supreme Court of Canada.

You'll find the office at 90 Frobisher Drive, Unit 1B (upper level), in Waterloo, and the phone number is 519-886-6223.

Practice areas

Trials, appeals and dispute resolution

Disputes can run through trials and appeals, and the firm's dispute resolution work also covers arbitration and mediation.

Employment disputes and contracts

Employment services run from reviewing severance packages and employment contracts to enforcing non-compete and non-solicitation clauses.

Estate and trust disputes

Postnikoff Law represents clients in disputes over wills, estates, trusts and powers of attorney, covering will challenges and interpretation, passing of accounts, dependant's relief, trustee disputes and inheritance disputes. Guardianship applications are part of the estate practice too.

Shareholder, partner and commercial disputes

The firm has acted for shareholders and partners, and for corporations and businesses in numerous disputes, oppression remedy claims and winding-up applications among them. Creditor and debtor disputes and professional negligence are on the business list as well.

Real estate litigation

On the real estate side, the firm handles real estate litigation.

Construction disputes

In construction disputes, Postnikoff Law has acted for contractors, sub-contractors and owners.

Good to know

A person using a wheelchairAccessible parking

How Postnikoff Law works

Jarvis is conscious of the damage a dispute can do and works to protect each client's interests. Advice is built around the means best suited to resolving the dispute for that client's needs, which can mean the courts or a more private venue such as mediation. The goal is to meet clients' needs in the most effective venue possible.

Frequently asked questions

Has Postnikoff Law acted for employers as well as employees in dismissal claims?
Yes. In both wrongful and constructive dismissal matters, Postnikoff Law has represented employees and it has represented employers.
Who has Postnikoff Law represented in estate matters?
In estate matters, the firm has acted for estate trustees, for beneficiaries, and for those the deceased didn't properly provide for.
Can Postnikoff Law act as a mediator?
Yes. Postnikoff Law offers its services as a mediator in any of its practice areas.

Where to find them

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

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This listing was generated by AI from public sources in October 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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