Dennis O'Connor O.C., K.C

Chris Margison has over 20 years of private and public sector legal experience, including as Special Advisor to both the Commissioner of Competition and the Senior Deputy Commissioner, Cartels Directorate at the Competition Bureau. With his background, Chris brings a number of attributes, such as the ability to provide critical advice, guidance and recommendations in a timely fashion on all aspects of Canadian competition law. He has advised the Commissioner, Senior Deputy Commissioners and h...

Kevin enjoys practising law and loves the challenges of civil litigation. He has broad experience in all aspects of insurance claims litigation, including personal injury, products liability, property losses, professional negligence, class proceedings, and coverage disputes. He is an expert in handling first-party accident benefits claims and disputes between insurers (loss transfer and priority disputes). Kevin is proud to assist many of the firm’s longstanding clients with tailored, p...

Stuart Chaimberg is a partner in Miller Thomson’s Real Estate Group, focusing on the area of commercial leasing. A member of the Ontario Bar Association and the Barreau du Québec, Stuart is fluent in both English and French. He regularly advises clients on matters involving both common law and civil law concepts inherent in commercial leasing and real estate transactions across Canada. Stuart regularly presents at conferences and authors articles and publications in the commercia...

Thomas (Tom) Meagher is a partner in the firm's Banking and Finance group. Tom’s banking and finance practice is focused exclusively on structuring, documentation and negotiation of complex corporate and commercial debt transactions on behalf of financial institutions, insurance companies, corporations and foreign law firms seeking Canadian banking and finance advice. Advising creditors and debtors both nationally and internationally, Tom has extensive experience in all areas of corpora...

Roberto Tomassini is a partner in Koskie Minsky’s Pension and Employee Benefits Group with extensive experience advising and representing employees, unions, plan administrators, trustees and their advisors and consultants regarding all aspects of pension and employee benefit plan structuring, administration, regulatory compliance and fiduciary responsibilities. Roberto has particular expertise relating to income and sales tax issues affecting the design and administration of pension and...

Chester Wydrzynski is a top attorney recognized by Best Lawyers in the practice area(s) of Insurance Law. Chester, 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 Chester is held by other top lawyers in the same geographic and legal practice area.

Colin Burn is a partner practising in the Mergers & Acquisitions, Capital Markets, Securities and Mining Groups. His practice is primarily focused on corporate and securities law, with an emphasis on M&A, corporate finance, private equity, and stream and royalty finance, as well as corporate governance matters. Colin has extensive experience advising foreign and domestic clients, including private equity and other financial sponsors, in public and private merger and acquisition transa...

Jill Makepeace has almost two decades of experience conducting criminal trials and appeals. She has represented individuals charged with a broad spectrum of criminal offences, including alleged crimes of violence and serious drug cases. A significant concentration of her trial practice is defending regulated professionals facing criminal and administrative prosecution. She has appeared before all levels of court in Ontario and New Brunswick. She also has experience before administrative tribu...

Roman Myndiuk is a partner at Beard Winter LLP. He practices civil litigation with an emphasis on insurance defence and commercial matters. Roman has extensive experience dealing with personal injury, property damage, occupier’s liability, tavern liability, product liability, professional liability, breach of contract and ski defence cases. He also regularly defends first-party accident benefits claims and coverage disputes. Over the years, Roman has developed a particular interest in d...

Robert Janes practices civil litigation, focusing on constitutional, aboriginal and commercial litigation Robert Janes has been a litigator for over twenty years and has extensive experience in assisting First Nations, Aboriginal people and others with difficult problems needing sound strategic and legal advice. Robert’s approach is to find practical solutions where possible, while preparing to vigorously advance his client’s interests in court where necessary. Robert’s focu...