About Anton M. Katz, Barrister & Solicitor

Clients rate this firm highly on Google.

Anton M. Katz, Barrister & Solicitor is a Toronto business law practice that looks after small and midsize business owners, with corporate and commercial law at its core. Anton Katz has been a sole practitioner since 2001 and runs a small business too, so the challenges a growing company faces aren't abstract here. The practice has grown steadily since opening, and its clients include business owners as well as lawyers, accountants and other professionals.

Anton Katz earned a J.D. at Osgoode Hall Law School in 1994 and was called to the Ontario Bar in 1996, and brings more than 25 years of corporate law experience to each file. A team of legal assistants and law clerks works alongside. Day to day, that means everything from registering and incorporating a company to share and asset purchases, commercial leases and the contracts a business signs with its customers.

When a deal or a relationship goes wrong, the firm also takes on commercial and civil litigation, including fights between partners or shareholders and employment cases.

The office is at 5255 Yonge Street, between Sheppard and Finch, and it's easy to reach by transit or from the major highways. New clients start with a free half hour consultation, which ends with estimated costs and a preliminary budget and plan of action.

Practice areas

Corporate law and company records

The firm incorporates businesses federally and in Ontario, professional corporations included, and handles share issuances, transfers and redemptions. It also manages amalgamations, reorganizations and dissolutions, and keeps minute books up to date as a company changes.

Commercial agreements and business sales

Anton Katz acts on business purchases and sales, franchised businesses among them, and drafts partnership and shareholders' agreements. Other contract work includes agreements with employees and independent contractors, distribution and licensing deals, restrictive covenants such as non-competes, commercial lease reviews and contract negotiation.

Commercial and civil litigation

On the litigation side, the firm takes on contract, partnership and shareholder disputes, franchise disputes including rescission claims, and employment cases such as wrongful dismissal. It also handles real estate litigation over commercial leases, estate litigation and debt collection.

Good to know

A person using a wheelchairWheelchair accessibleA rainbow pride heartLGBTQ+ friendlyA laptop showing a video callVirtual appointmentsAn office interior with a desk and chairsIn-person services

Fees & payment

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

How Anton M. Katz, Barrister & Solicitor works

Anton M. Katz, Barrister & Solicitor aims for legal solutions that are timely and cost-effective. Anton Katz's commitment is to explain things plainly and keep the relationship personal, and a wide circle of lawyers, accountants and other professionals is there for a second perspective when a file calls for it. Incorporation is a good example of how the advice works: the first thing a client wanting to incorporate gets asked is why.

Milestones & recognition

  • Anton Katz served on the Ontario Bar Association Council from 2012 to 2018 and as a Trustee of the OBA Foundation from 2014 to 2018.
  • While a trustee, Anton Katz was lead administrator of the OBA Foundation's fellowship program.
  • Anton Katz has mentored through both the OBA and the Law Society of Ontario and has tutored Bar Admission Course students.
  • Anton Katz was a guest on Season 1, Episode 9 of Fire Away: The Employment Law Show, talking through the sale of a business with Stuart Rudner.

Affiliations & connections

The neighbourhood

The practice works out of 5255 Yonge Street, an office building finished in 1990 in Toronto's North Yonge corridor. It stands on Yonge's east side, south of Finch Avenue, and it's long been a draw for corporate head offices. The 243,000 square foot building has underground parking.

Frequently asked questions

Can Anton M. Katz keep my corporation's minute book at the office?
Anton M. Katz, Barrister & Solicitor maintains minute books at its office for many of its clients. The firm also records corporate changes as they happen.

Where to find them

5255 Yonge Street Suite 800, Toronto, Ontario M2N 6P4 · 416-606-5099

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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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