John O'Connor

Jacob began his legal career at one of the world’s largest law firms, practicing in the areas of estate and commercial litigation. He then focused exclusively on estate litigation at a well-known boutique firm, eventually becoming a partner, before joining Donovan Kochman LLP. Jacob has acted as section 3 counsel and appeared before various levels of court, including the Superior Court of Justice and the Court of Appeal for Ontario. He is a knowledgeable and tenacious advocate who striv...

Boris W. Zayachkowski is a lawyer recognized by Best Lawyers in the practice area of Commercial Leasing Law. Boris W. practices law in Toronto, Ontario Best Lawyers has recognized Boris W. Zayachkowski since 2027. The Best Lawyers recognition is based on a peer-review survey of lawyers in the same geographic region and legal practice area. The recognition reflects the professional regard in which Boris W. Zayachkowski is held by other lawyers.

Alex's practice focuses on Canadian tax issues that affect multinationals with operations in Canada, including international tax planning (inbound structuring, transfer pricing, foreign affiliate taxation, cross-border employee mobility, withholding tax, tax treaty issues), M&A, reorganizations and financings. Alex is both a lawyer and a Chartered Professional Accountant. Alex advises clients in the digital economy, infrastructure, resource, healthcare, consumer product and retail spaces....

Erin Crawford is a lawyer recognized by Best Lawyers in the practice areas of Family Law and Family Law Mediation. Erin practices law in Toronto, Ontario Best Lawyers has recognized Erin Crawford since 2026. The Best Lawyers recognition is based on a peer-review survey of lawyers in the same geographic region and legal practice area. The recognition reflects the professional regard in which Erin Crawford is held by other lawyers.

Romaana Shariff is the founding Managing Partner of Shariff & Associates . She has a comprehensive family law practice with experience in all matters related to divorce and separation, including parenting issues, child and spousal support, and property division. She also assists clients with Wills preparation and creating powers of attorney. Romaana is a solution-oriented family lawyer who believes in fostering a positive solicitor-client relationship and working to achieve the best possi...

Devin Jarcaig is a partner at Mathers McHenry & Co, an executive advisory and employment law boutique located in downtown Toronto. Devin’s advisory practice focuses on providing strategic and legal advice to executives, directors, partners, shareholders, and other senior employees at key transition points in their careers. She regularly advises her clients on a wide range of complex employment law issues, including but not limited to employment terminations, written offers of employ...

Michael Winterstein is a lawyer recognized by Best Lawyers in the practice area of Labour and Employment Law. Michael practices law in Toronto, Ontario Best Lawyers has recognized Michael Winterstein since 2025. The Best Lawyers recognition is based on a peer-review survey of lawyers in the same geographic region and legal practice area. The recognition reflects the professional regard in which Michael Winterstein is held by other lawyers.

Mark Rowlinson advances the interests of workers in his international law, trade law and labour law practice. He also advocates in the area of climate and the environment. Mark joined the firm after a 26-year career with one of Canada’s largest private sector trade unions. He has decades of experience in litigating a wide variety of labour law cases before labour boards, arbitrators and in the courts across Canada. He has also litigated labour cases under Canada’s trade agreements...

Nate is a solution-oriented advocate with a broad commercial litigation practice across a wide range of industries, including renewable energy, commercial real estate, financial services and telecommunications. His experience includes major contractual disputes, shareholder disputes, director and officer liability, insolvencies and receiverships, class actions, tax litigation and advertising litigation. Nate is an effective advocate, both in and out of the courtroom. He has delivered results ...

David has a wide-ranging civil litigation practice covering almost all aspects of insurance related litigation, including municipal liability, occupiers’ liability, commercial host, sports & entertainment facilities, education law and events related liability as well as professional negligence and automobile claims litigation. He is often called upon to advise casualty and property insurers along with policy holders and self insured entities on insurance related issues, including im...