About Zacks Law

Zacks Law is a small litigation firm in Toronto with two lawyers, Dan Zacks and Akkila Thirukesan. The firm concentrates on business disputes, appeals, limitations law, and insurance coverage disputes, and works with clients ranging from small businesses to large corporations. Before founding the firm, Dan Zacks acted for domestic and London market insurers, providing coverage opinions and litigating coverage disputes. Dan has argued appeals before administrative tribunals, the Divisional Court, the Court of Appeal for Ontario, and the Federal Court of Appeal, and has brought leave applications to the Supreme Court of Canada.

Dan Zacks co-authored The Law of Limitations, a LexisNexis textbook now in its fourth edition, and Halsbury's Laws of Canada, Limitation of Actions (2017 Reissue), also published by LexisNexis, and writes Under the Limit, a blog on Canadian limitations jurisprudence. Dan is recognized in Best Lawyers Canada for corporate and commercial litigation. Akkila Thirukesan practices professional liability, commercial, and administrative and constitutional litigation, with experience in government, an international law firm, and the Los Angeles Public Defender's Office. The firm often works on a block, fixed, or hybrid fee basis instead of billing strictly by the hour, and can take some policyholder coverage disputes on a contingency basis.

Milestones & recognition

  • Dan Zacks co-authored the LexisNexis textbook The Law of Limitations, now in its fourth edition.
  • Dan also co-authored Halsbury's Laws of Canada, Limitation of Actions (2017 Reissue), published by LexisNexis.
  • The Supreme Court of Canada cited Dan's paper, Claims, not causes of action, in Grant Thornton LLP v. New Brunswick.
  • The Court of Appeal for Ontario cited Dan's paper, The Limitation of Applications to Pass Accounts, published in the Advocates' Quarterly, in Armitage v. The Salvation Army, and in Restoule v. Canada (Attorney General) cited a post from Dan's blog, Under the Limit, describing it as authoritative.
  • Dan Zacks is recognized in Best Lawyers Canada for corporate and commercial litigation.
  • Dan presented on developments in limitations jurisprudence at Osgoode Professional Development's 15th Annual Personal Injury Update in 2019, and taught limitations issues in motor vehicle accident litigation for Osgoode's Certificate in Motor Vehicle Accident Law and Practice program in 2022.
  • Akkila Thirukesan won the 2021 Arnup Cup moot and was a top oralist at the 2020 International Criminal Court Moot Competition.

Good to know

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Fees & payment

A price tag with a dollar signFlat feeA shield with gold coins, a dollar sign and a checkmark sealContingency

The neighbourhood

Zacks Law's office is on the 5th floor of 33 Bloor Street East, a 17-storey office building at Yonge and Bloor that sits above what has been described as the city's busiest subway interchange, where the TTC's two subway lines cross. The tower's ground floor was rebuilt in 2021 to extend the Bloor Street shopping corridor. For a firm that argues appeals across Ontario, from administrative tribunals up to the Supreme Court of Canada, an office steps from the subway keeps it reachable for clients and co-counsel from across the region.

Frequently asked questions

What kind of legal work does Zacks Law handle?
Zacks Law concentrates on business disputes, appeals, limitations law, and insurance coverage disputes, acting for clients from small businesses to large corporations.
Can Zacks Law help with an appeal to the Divisional Court or the Court of Appeal?
Yes. Dan Zacks has argued appeals before administrative tribunals, the Divisional Court, the Court of Appeal for Ontario, and the Federal Court of Appeal, and has brought leave applications to the Supreme Court of Canada. The firm also drafts facta and advises other lawyers on appeal strategy.
I'm in a coverage dispute with my insurer, can Zacks Law help?
Zacks Law acts for both policyholders and insurers in coverage disputes, including professional liability, property, business interruption, homeowners', and commercial general liability coverage. Some policyholder disputes can be taken on a contingency basis.
Does Zacks Law bill by the hour?
Not always. The firm often works on a block, fixed, or hybrid fee basis instead of the standard billable hour, and is upfront about fees from the start.
What is a limitation period, and does Zacks Law advise on them?
A limitation period is the legal deadline for starting a claim. Dan Zacks co-authored the LexisNexis textbook The Law of Limitations and has provided more than 100 opinions on limitations defences for individuals and other lawyers, from sole practitioners to international firms.
Where is Zacks Law located and how do I reach the firm?
Zacks Law is on the 5th floor at 33 Bloor Street East in Toronto, at Yonge and Bloor. Dan Zacks can be reached at 647-490-5417 and Akkila Thirukesan at 647-490-5281.

Where to find them

33 Bloor Street East, 5th floor, Toronto, Ontario M4W 3G8 · 647-490-5417

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