Andrew Parley


Andrew* has a background in mechanical engineering that enables him to understand technical issues, from complex infrastructure projects to nuclear power projects. Using his technical expertise, Andrew engineers§ solutions to complex cases dealing with everything from construction law to finance to energy. Andrew’s diverse practice leads to success for his clients, across all sizes and industries, in all levels of court in Ontario and the Supreme Court of Canada. With his strong advocacy skills and attention to detail, you can count on Andrew to build a winning case. .



Andrew Parley

is a partner at Lenczner Slaght.

Andrew's practice spans a diverse range of industries from securities and finance to energy to construction, infrastructure, and logistics.  Focusing on commercial litigation matters, he represents individuals, and business of all sizes.  As a mechanical engineer by training, Andrew has a strong understanding of engineering and construction project management.

Some of the clients that Andrew has represented include BMO Nesbitt Burns, British Energy, 407 ETR, TMX Group Inc., McDonalds Restaurants of Canada Limited, SNC Lavalin Inc., Sears Canada, and the Government of Canada.  He has appeared before the Ontario Superior Court, the Ontario Divisional Court, the Ontario Court of Appeal, the Supreme Court of Canada as well as various administrative tribunals.  Andrew has also been involved in several private, local and international arbitrations.

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  • The Advocates' Society

  • Canadian Bar Association

  • Ontario Bar Association

  • Pro Bono Law Ontario

  • Law Help Ontario

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  • Benchmark Litigation (2017-2019)

    Under 40 Hotlist

  • Benchmark Canada (2018-2019)

    Future Star - General Commercial, Securities

  • Best Lawyers in Canada (2020)

    Health Care Law

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