Spiegel Ryan

21 Best Lawyers awards

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Awarded Practice Areas

Corporate Law

Biography

Marc Leiter’s experience, expertise and solution-solving acumen are the keys to a successful commercial transaction.

With over three decades of business law experience, Marc Leiter steers businesses through all stages of a commercial transaction. Well-versed in the challenges faced by businesspeople, he dispenses sound advice on mergers and acquisitions (both domestic and cross-border), contracts and licenses, and other transactions. A prominent figure in the world of business law, Marc Leiter assists clients in a wide range of industries, including manufacturing and importing, technology and software, real estate, automotive, pharmaceutical, medical, dental, and food manufacturing and processing. He also helps startups and companies facing restructuring to develop and rework their business plans.

Marc Leiter is known for his professionalism and actively gives back to the community, which has earned him to be named a Life Governor of the Quebec Bar Foundation. Among numerous other activities, he was campaign director for the former Minister of Justice and Attorney General of Canada Irwin Cotler.

Spiegel Ryan

21 Best Lawyers awards

Spiegel Ryan logo

Overview

  • English
  • French

  • McGill University, B.C.L./LL.B., graduated 1971
  • McGill University, B,A., Honours, graduated 1968

  • Quebec, 1972

  • Barreau du Québec - Member
  • Judicial Committee of the Liberal Party of Canada - Former Member
  • Mount Royal Federal Liberal Association - Former President
  • Quebec Bar Foundation - Life Governor
  • English
  • French
  • Quebec, 1972
  • Barreau du Québec - Member
  • Judicial Committee of the Liberal Party of Canada - Former Member
  • Mount Royal Federal Liberal Association - Former President
  • Quebec Bar Foundation - Life Governor
  • McGill University, B.C.L./LL.B., graduated 1971
  • McGill University, B,A., Honours, graduated 1968

Client Testimonials

Awards & Focus

Recognized in The Best Lawyers in Canada 2026 for work in:
  • Corporate Law

Additional Information

  • Practice Areas
  • Business Law
  • Mergers and acquisitions

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