Gillian Hayes

Susan Sack is a top attorney recognized by Best Lawyers in the practice area(s) of Family Law, Insurance Law, Legal Malpractice Law and Trusts and Estates. Susan, 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 Susan is held by other top lawyers in the same geographic and legal practice area.

Barry is a founding partner of Weintraub Huang LLP. Barry's practice includes litigation of civil & corporate/commercial, environmental and employment matters. Barry is an experienced and successful trial and appellate counsel. He has made more than 1500 appearances in various types of proceedings before various courts at all stages of litigation and has also appeared before several different administrative tribunals. Barry has acted as counsel in numerous mediations and commercial arbitr...

John helps clients solve their business and personal disputes: Corporate and Commercial Litigation - Business partner and shareholder disputes, breach of contract, environmental contamination disputes, franchise disputes, debt collection, commercial tenancy disputes, construction disputes, real estate disputes, product liability, bankruptcy and receiverships Estate Litigation - Disputes between heirs/beneficiaries and executors/estate trustees Sports Law - representing amateur hockey and othe...

Bruce Blain’s broad business practice has included advice on mergers and acquisitions, corporate reorganizations, and debt and equity financings, as well as partnership, joint venture and shareholder arrangements. Bruce has been involved in the purchase and sale of businesses across a wide range of industries, including steel making, manufacturing, high tech, financial services and consulting and professional services. His experience also includes public markets financing, reorganizatio...

Mark Zigler is a senior partner in the Pensions and Benefits Group with over 35 years of experience. He also chairs the firm’s class action committee. Mark also served as the firm’s managing partner from 2006 – 2012. Mark advises trustees of pension and benefits trusts as well as unions and groups of employees and pensioners. He has also acted as counsel in many high profile cases and class actions across Canada involving pensions, benefits and other employment related issue...

Stephen Aylward is a top attorney recognized by Best Lawyers in the practice area(s) of Administrative and Public Law and Appellate Practice. Stephen, who practices law in Toronto, Ontario, has been recognized since 2026. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Stephen is held by other top lawyers in the same geographic and legal practice area.

Michael Osborne advises and represents clients involved in competition and regulatory inquiries, criminal and administrative prosecutions, class actions and other competition litigation. His practice covers all aspects of competition law, including cartels, abuse of dominance, mergers, and marketing practices. He has expertise in a wide range of industries, including airlines, banking and payment systems, securities, waste, technology, pharmaceuticals, energy, manufacturing, and construction....

Renée Pelletier is a Partner at OKT. Her practice focuses on Aboriginal and Treaty Rights litigation and negotiation. Renée has extensive experience litigating Aboriginal title claims: having served as lead counsel both in Saugeen Ojibway Nation’s Aboriginal title claim to their water territory and currently in the Wolastoqey Nation’s Aboriginal title claim to their territory in New Brunswick. She has also developed significant experience in claims and legal matters ...

Douglas Harrison is an independent commercial arbitrator and mediator, handling both international and domestic Canadian business disputes. He also acts as legal counsel in select matters, including designing arbitral procedures and enforcing arbitral awards, as well as doing opinion work. Mr. Harrison is a Fellow of the Chartered Institute of Arbitrators, a member of the CPR Panels of Distinguished Neutrals as both an arbitrator and mediator (Global Panel, Product Liability Panel and Pro Bon...

Randy Sutton practises dispute resolution and regulatory law. Mr. Sutton has represented clients in the provincial and federal courts across Canada, in arbitrations (both domestic and international) and in a variety of administrative proceedings. He is a member of the British Columbia, Saskatchewan and Ontario bars. His litigation practice includes the representation of clients in commercial, class action, competition, environmental, product liability, product recall, insurance, defamation an...