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Meet David D. Lyons

Business Law Lawyer

"Entrepreneurs are amazing people. They create jobs and help build communities. I enjoy opportunities to work with inspiring entrepreneurs to help them implement legal strategies that build, protect and strengthen their businesses. These opportunities can range from setting up a start-up company, to negotiating a key supply contract, or closing a strategic acquisition."

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Professional Highlights

  • Practice Group Leader, Business Law Group (2021 to present)
  • Partner, Lerners LLP (2013 to present)
  • Associate, Lerners LLP (2007-2012)
  • Articling Student, Lerners LLP (2006-2007)

  • Acquisition and Sale of Businesses (M&A)
  • Commercial Real Estate Transactions (including manufacturing, service & hospitality industries, retirement homes & homes for special care
  • Commercial Leasing
  • Professional Corporations
  • Technology law including intellectual property matters (Trade-mark Agent)
  • Incorporation, Business Organization and Corporate Reorganization
  • Shareholder Agreements
  • Contracts and Business Agreements
  • Recent transactional experience includes acting for a local technology start-up in a multi-party private equity financing, working on cross-border financing and sale transactions and many local owner-operated business acquisitions and sales.
  • Industry-specific experience includes dental, optometry and health care sector transactions, technology, automotive, software, agricultural, and various manufacturing.

  • “David Lyons and his team have assisted our businesses in many ways. The Achievement Centre was stepping through a change in ownership structure that required careful consideration to the valued relationships of the stakeholders, while stepping through some unusually difficult circumstances. David’s skill in understanding the technical legal requirements, combined with his ability to demonstrate empathy for all sides during the negotiations, was key in helping us reach a very successful conclusion. At every step, David and Lerners met their timeline commitments and exceeded their professional commitments. It is for this reason that we have continued to utilize David and Lerners for a wide variety of commercial law needs.”
    Marc Lacoursiere, The Achievement Centre
  • "Just wanted to say thank you for working with us on this deal. Your professionalism and dedication to clients is unparalleled. You have us as lifelong clients."
    A dentist client who sold a practice – June 2022

  • "Legal Issues section of the Business of Dentistry Program", presentation to Schulich School of Medicine & Dentistry, Western University (January 2018)
  • "Protection of Intellectual Property (Part of Employment Law 101)", presentation to TechAlliance Breakfast Club (November 2013)
  • “Commercial Contracts: Tips & Traps”, presentation to TechAlliance Finance Peer-2-Peer Group (May 2, 2013)
  • “Canada’s Anti-Spam Legislation: What your business needs to know”, presentation to various groups (2012-2013)
  • “Commercial Leasing: Special rights in a lease that add value”, presentation to Financial Executives International (FEI) London Chapter (March 2012)
  • Article in London Free Press, “Property Security Act changes may require legal advice”, (December 3, 2007). (Read article)


  • Chair, Governmental Affairs Committee, London Chamber of Commerce
  • Member, Canadian Bar Association, Ontario Bar Association & Middlesex Law Association
  • Member and Firm Liaison, TechAlliance
  • Judge, TechAlliance 'Techcellence' Awards
  • Past director and officer, SARI Therapeutic Riding (2007-2012) and long-time supporter

  • Selected by peers for inclusion in Best Lawyers in Canada for Corporate Law

  • Pro Bono Students Canada Outstanding Team Leader Award (2005 & 2006)
  • Harrison Pensa Contract Drafting Competition Upper-Year Winner (2005)
  • MacKewn, Winder, Kirwin Entrance Scholarship in Law (2003)
  • Dean of Law Entrance Scholarship (2003)
  • George G. Blackburn Award (2003)
  • J.C. Herbert Award in History (2002)

  • Admitted to Ontario Bar (2007)
  • Licensing Process Program, Law Society of Upper Canada (2007)
  • Bachelor of Laws, University of Western Ontario (2006)
  • Bachelor of Arts (Honours History & Political Science), Wilfrid Laurier University (2003)