Tom Halinski

Peter is qualified as a CPA CA and a lawyer and has been practising as a tax lawyer/accountant for over 20 years. Prior to pursuing his law degree, Peter worked as a senior tax auditor at the CRA where he audited companies with up to $1 billion in revenue. His experience provides special insight and diverse skills for helping clients in tax planning and representation matters. Peter has assisted clients with a broad range of tax planning engagements involving domestic and international struct...

John A. Olthuis is one of the founding partners of OKT. His practice includes litigation, comprehensive and specific land rights, self-government, and impacts and benefits agreements. John was on the legal team of the Assembly of First Nations in negotiations with Canada and the provinces lending to the inclusion of "Section 35" in Canada’s repatriated Constitution in 1982. John was legal counsel to Chiefs of Ontario and table negotiator at the Aboriginal Government table for the Assemb...

Adam Weisberg is a dedicated criminal lawyer with both an appeal and trial practice. He has appeared at all levels of court and conducted hundreds of successful trial matters. In 2011, he was granted his Certified Specialist in Criminal Law designation after practising for only eight years. Mr. Weisberg's practice focuses on defending complex drug matters, sexual assault cases, white collar crime and homicides. Mr. Weisberg is also committed to legal education. He is currently a vice-presiden...

A recognized leader and advocate, Carissa Tanzola is committed to delivering strategic business solutions while navigating legal challenges with integrity and efficiency. As the current Managing Partner of the Firm, she leads with innovation and passion, driving success for both her clients and the firm Carissa provides employers with expert legal guidance and representation for complex workplace issues. Her practice has a special focus in workplace health and safety, workers’ compensat...

Chris has an impressive 25-year career specializing in appeals and civil litigation. As an appellate lawyer Chris has argued multiple multi-million dollar civil appeals including the largest wrongful death award for general damages in Canadian history. His numerous appeals in the Court of Appeal and the Supreme Court of Canada have become part of the established Canadian Jurisprudence in the fields of tort liability and insurance and has over 60 reported decisions. His experience in the realm...

Kate Mazzucco is a top attorney recognized by Best Lawyers in the practice area(s) of Insurance Law and Personal Injury Litigation. Kate, who practices law in Toronto, Ontario, has been recognized since 2021. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Kate is held by other top lawyers in the same geographic and legal practice area.

Rebecca Huang is a top attorney recognized by Best Lawyers in the practice area(s) of Corporate and Commercial Litigation. Rebecca, who practices law in Toronto, Ontario, has been recognized since 2025. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Rebecca is held by other top lawyers in the same geographic and legal practice area.

Colin Smith is a partner in the Toronto office of Thorsteinssons LLP. Colin’s practice covers all income tax matters relating to domestic and foreign business ventures and administrative appeals to the Canada Revenue Agency. However, Colin has a particular focus on the taxation of private corporations and estate planning for high net-worth clients. Colin is a frequent lecturer and contributor to various tax publications. Colin has published various articles in the Federated Press’...

John Atchison is a top attorney recognized by Best Lawyers in the practice area(s) of Corporate Law and Real Estate Law. John, who practices law in Toronto, Ontario, has been recognized since 2018. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which John is held by other top lawyers in the same geographic and legal practice area.

Harold is actively practicing, and he remains a preeminent leader of the family law bar. Though his official title at Niman Mamo LLP is “Counsel”, he is the lead lawyer on files in which he is involved. For those cases where Harold is not involved, the firm and the firm’s clients retain the added benefit of seeking his advice and wisdom. Named Toronto’s best divorce lawyer by Toronto Life Magazine in 2009, Harold is one of the most frequently recommended lawyers in the...