Michael E. Barrack

Melanie D. McNaught is a partner in the firm. She joined the firm as an associate in 2003. Prior to joining the firm, Melanie clerked at the Court of Appeal for Ontario. Melanie practises in all areas of labour and employment law. She has a particular interest in civil litigation, education law, privacy and human rights. She has represented clients before all levels of court, at labour arbitration and numerous administrative tribunals, including the Ontario Labour Relations Board and the Huma...

Peter has over 40 years experience in practice as a litigator and provider of legal advice in diverse sectors, notably in media. Peter practises mainly in the areas of media law, defamation law, administrative law and constitutional law. He is a seasoned litigator and has significant experience in trials, appeals and judicial reviews at all levels of court and before numerous administrative tribunals. Peter provides regular pre-publication advice and litigation services to major media outlets...

William K. Orr focuses his practice on corporate governance in acting for boards of directors and independent committees of boards. He is highly experienced in securities regulation involving multi-national transactions in Canada, the US, the UK and beyond. Bill is recognized in Canadian and international directories for expertise in public and private financings, private placements, takeover bids, M&A, going-private transactions, corporate governance, restructurings, and stock exchange a...

Patrick Flaherty is a top attorney recognized by Best Lawyers in the practice area(s) of Class Action Litigation, Corporate and Commercial Litigation and Director and Officer Liability Practice. Patrick, who practices law in Toronto, Ontario, has been recognized since 2017. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Patrick is held by other top lawyers in the same geographic and legal practice area.

David Ziegler’s robust civil litigation and arbitration practice encompasses business-critical commercial and financial disputes, class actions, product liability matters, construction matters (including adjudications), and disputes requiring international arbitration. His vast experience acting for both Canada- and US-based companies is sought after for domestic and cross-border disputes, spanning a broad range of industries including mining, rail, professional services, insurance, ban...

M. Scott Martin is a top attorney recognized by Best Lawyers in the practice area(s) of Corporate and Commercial Litigation. M. Scott, 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 M. Scott is held by other top lawyers in the same geographic and legal practice area.

Alexander Lalka has a corporate, commercial and securities law practice focusing on mergers and acquisitions and corporate finance. Alexander often provides strategic advice to private companies in various industries, located in Canada and abroad, when they are proceeding with a going-public transaction to list on any Canadian stock exchange including initial public offerings, reverse take-overs and direct listings. He routinely advises public companies on corporate governance, continuous and...

Roger Townshend, a founding partner of OKT, is now a senior counsel to the firm. He practices Aboriginal , Constitutional, human rights , and administrative law, with particular stress on land claims litigation. He has a B.Sc (Hons.) in Mathematics. He has appeared in Court and advised on numerous cases relating to Aboriginal law claims including claims related to Aboriginal title and other Aboriginal rights and treaty rights, and duty to consult and accommodate cases. His court work has also...

David R. Schlesinger is a top lawyer recognized by Best Lawyers in the practice area(s) of Tax Law and Trusts and Estates. David R., who practices law in Toronto, Ontario, has been recognized since 2024. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which David R. is held by other top lawyers in the same geographic and legal practice area. David has extensive experience advising clients on taxation matters in: corporate reorganizations, mergers a...

Alethea Au is a partner in the Mergers & Acquisitions Group (with a focus on technology companies). She has counselled a range of clients including private equity funds, strategic corporate buyers, and founder clients across various industries in complex matters related to mergers and acquisitions, including structuring, risk mitigation, divestitures, minority and majority investments, use of representation and warranty insurance and related transactional and transitional issues. She also...