A Partner in Parlee McLaws’ Calgary office, Greg’s practice is focused on civil litigation. His clients include a number of nationally prominent companies, for whom he provides counsel with an emphasis on Corporate Commercial disputes including construction and employment matters. He has appeared on numerous occasions in the Court of Queen’s Bench and the Alberta Court of Appeal.

Since 1984 a substantial part of Greg’s practice has been in the areas of construction law, builders’ liens and design negligence. Representative cases include:

  • As co-counsel for a general contractor in a claim of approximately $30,000,000.00 related to engineering negligence and a shoring wall failure. The claim was settled favourably on the eve of trial. The claim involved dozens of experts and issues related to delay and business interruption.
  • A claim involving faulty design and product defects related to the design and manufacture of gas compressors for use in a large diameter pipeline. The claim is in excess of $10,000,000.00.
  • A claim involving allegations of professional negligence and breach of contract in relation to a design build contract for the construction of substations and a hydroelectric transmission line in the Yukon. The claim involves claims for delay and economic loss. The claim is approximately $15,000,000.00.
  • A claim on behalf of an owner related to the performance of heavy industrial work in the oil sands. The dispute includes a claim for economic loss and delay. The claim is just under $40,000,000.00.
  • A claim related to the failure of a storm and sanitary line and other design issues related to the construction of a condominium project. There are numerous claims of negligence against a variety of engineering disciplines. The claim is for $9,000,000.00.
  • Acting on behalf of a general contractor in relation to a dispute concerning the faulty design and installation of tiling and flooring at the Calgary Airport. The claim is in excess of $4,000,000.00.
  • Representing a general contractor in respect of a claim involving an individual who was rendered a quadriplegic allegedly as a result of construction and design deficiencies in the construction of a skateboard park. It is multi-party litigation, with extensive expert evidence required.
  • On a multi-jurisdictional claim involving claims of breach of trade secrets, copyright and patent issues involving internal automatic welders. The claim involved lengthy proceedings in Alberta and an Arbitration under the International Commercial Court of Arbitration.
  • Over the course of Greg’s practice, he has worked with numerous engineers, architects, delay experts and economists related to claims of professional negligence, delay and business interruption loss.

Professional Activities

  • Member, Finance and Audit Committee, Law Society of Alberta (appointed 2018)
  • Member, Conduct Committee, Law Society of Alberta (appointed 2014)
  • Director, Alberta Law Foundation (appointed 2014)
  • Firm Liaison and Volunteer, Pro Bono Law Alberta (since 2013)
  • Volunteer Mentor, Law Society of Alberta (since 2009)
  • Guest Instructor, Intensive Trial Advocacy Course, Law Society of Alberta (2003, 2004)
  • Chair, Calgary Legal Guidance (2001-2002)
  • Director, Calgary Legal Guidance (1996-2003)
  • Lecturer, Alberta Bar Admission Course (1989-1992)
  • Member, Canadian Bar Association
  • Member, Calgary Bar Association


  • Chair and Director, Grace Bankview House Senior Citizens Society (2010-Present)
  • Monthly Volunteer, Inn from the Cold (2003-2016)
  • Director and Chair of Finance, Scarboro United Church (2000-2011)
  • Soccer Coach, Scarboro Community (1998-2007)
  • Area Organizer, Red Shield Campaign –  Salvation Army (1997-2002)
  • Member, Corporate Advisory Board to the Red Cross (1992-1995)
  • President, Hillhurst Sunnyside Community Association (1995)
  • Director, Hillhurst Sunnyside Community Association (1988-1995)
  • Volunteer, Calgary Catholic Immigration Society (1984-1987)
  • Ad Hoc Volunteer Canvasser, Heart and Stroke Foundation, Canadian Diabetes Association, Kidney Foundation (1990-Present)
  • Regular Ad Hoc Volunteer, Feed the Hungry- St Mary’s Cathedral, The Mustard Seed, Calgary Drop-in Centre (1990-Present)