Now in Toronto — Atlantic Canada to Ontario
We build what clients need next.
Providing strategic counsel to industry-leading clients for more than 160 years. Among Canada's 25 largest business law firms and a member of Lex Mundi.
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Recognition
Lexpert 2026
Regional Law Firm of the Year — Atlantic Canada
Lex Mundi 2026
Best Use of Innovation Award (151+ lawyers)
Great Place to Work®
Best Workplaces in Professional Services 2026
Best of Legal Diamond
5th consecutive year — superior client service
Atlantic Business Magazine
Best Law Firm — 2025 Readers' Choice
Our Services
Experience and collaboration propel our clients' success.
We combine contemporary industry knowledge with over 160 years of experience to meet the changing needs of business, public sector, and not-for-profit organizations of all sizes — regionally, nationally, and globally.
Corporate & Commercial
Mergers, acquisitions, governance, and complex corporate transactions across Atlantic Canada and beyond.
Employment & Labour
Workforce strategy, compliance, and dispute resolution for employers in every sector.
Litigation
Strategic dispute resolution from arbitration to complex commercial litigation at all levels of court.
Major Projects & Energy
Regulatory approvals, environmental law, and project financing for large-scale infrastructure and energy development.
Immigration
Corporate immigration services for businesses and individuals navigating Canadian work permit and residency requirements.
Real Estate
Commercial real estate transactions, development, and leasing across all Atlantic provinces and Ontario.
Publications
Insights for today's business decisions.
Publication
June 26, 2026
What PEI Employers Need to Know About the New Employment Standards Act
Effective June 30, 2026, Prince Edward Island will have a new Employment Standards Act. It replaces the current legislation and brings significant changes for employers.
Publication
June 15, 2026
Litigation Strategy Repriced: The Cost of Ignoring Amendments to New Brunswick's Rule 59
Changes to the New Brunswick Rules of Court modify how courts award costs — and litigants could pay a high price for ignoring them.
Publication
May 13, 2026
A New Playbook for Major Projects — Ottawa Seeks Industry Input on Rewriting the Rules
Ottawa has signalled a rewrite of the federal approvals system for major projects. No legislation yet, but the direction of travel is clear.
Careers at McInnes Cooper
A culture-first approach to business.
At McInnes Cooper, we believe in an inclusive working environment focused on career development, continued education, and collaborative professional growth.
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