Keith R. Chatwin

Katherine Prusinkiewicz is the knowledge lawyer for the Calgary office, working to leverage the practice's collective wisdom to ensure efficiency and uniform quality. She supports lawyers in our business law group with model documents and precedents, legal updates, training and other information needs and assists in our client communication program. As a result of our knowledge management initiatives and the practice’s culture of contributing and sharing knowledge, our clients can expec...

As one of our founders, Joe was appointed King’s Counsel in 1994 and a Fellow of the Chartered Professional Accountants of Alberta in 1995. He offers tax advice on a wide variety of matters, including resource tax, mergers and acquisitions and dispute resolution. An impactful leader, Joe guides our lawyers with active mentorship and mindful team building. Joe gives back to the community in a myriad of ways, both in an academic and volunteer capacity. He has taught at the University of A...

Joshua is a solicitor with a primary focus in corporate, commercial, and real estate matters. His approach is to work closely from the outset with clients to move matters forward. In his commercial law practice, Joshua regularly advises clients who are operating in a multitude of industries and business sectors on purchases and sales of businesses, mergers, secured transactions & financing, acquisitions, divestitures, corporate governance, and reorganizations . He enjoys a broad real esta...

Justin Burt is a top attorney recognized by Best Lawyers in the practice area(s) of Real Estate Law. Justin, who practices law in Calgary, Alberta, has been recognized since 2025. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Justin is held by other top lawyers in the same geographic and legal practice area.

Randy has been practicing law with Parlee McLaws since 1998 and currently practices in the areas of real estate and financing. In real estate, Randy has experience in a variety of leasing matters, from shopping center and office leases to telecommunication site agreements. Randy has also routinely been involved in residential and commercial real estate transactions, and has assisted clients through the legal labyrinth of condominium property law. In the financing area, Randy has been involved...

Jim Lebo finds legal solutions that protect businesses. With his detailed knowledge of the people and the intricacies of the court system, he guides his clients through every step of the litigation process with skill and expertise. Jim handles corporate commercial litigation, appeals, and arbitrations. He has specialized expertise in appeals for complicated regulatory proceedings as well as an interest in constitutional litigation. His clients come to him for help with a range of issues in ma...

Andrew received his Bachelor of Arts degree in Economics from the University of Waterloo in 1998, where he achieved Dean's List standing. He then obtained his Bachelor of Laws degree from Dalhousie University in Halifax in 2001. He again achieved Dean's List standing and was the recipient of numerous scholarships and awards. Andrew was called to the Alberta bar in 2002. After completing his articles Andrew obtained his Master of Laws degree from Queens' College, Cambridge University, England ...

Patricia Olyslager completed her law degree at the University of Calgary and was called to the bar in 2000. Patricia completed her articles with Parlee that same year. She then moved on to another firm and rejoined Parlee in 2013, becoming a Partner in 2019. Patricia’s practice primarily focuses on litigation, specializing in insurance coverage and defence, disability, product liability, and commercial litigation. Prior to attending law school, Patricia received a degree in nursing from...

Tim Ryan is a partner in Gowling WLG's Calgary office. He practises actively in the area of health law, professional regulation and professional liability. Tim's practice includes class action proceedings, administrative law and the defence of medical, pharmacist and engineering malpractice cases. He also has an interest in public and private international law matters. While at Cambridge, Tim concentrated his studies in public and private international law, including studies at the Lauterpach...

Clara is a leading energy regulatory lawyer who specializes in the power sector. She is currently serving as head of the firm's Litigation & Dispute Resolution Group in B.C., managing the litigation departments in those offices. Clara advises clients on a broad range of matters before regulatory boards and the courts, including market rules and compliance, long-term resource planning, electricity export permits, international power line approvals, rate design, and capital project permitti...