Anthony G. "Tony" Cioni

Ainsley Vieira is a top attorney recognized by Best Lawyers in the practice area(s) of Family Law. Ainsley, who practices law in Calgary, Alberta, has been recognized since 2024. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Ainsley is held by other top lawyers in the same geographic and legal practice area.

Elizabeth Williams, managing partner of the Calgary office, has a broad practice in both business law and intellectual property law where she provides general corporate and commercial advice and advises on intellectual property matters. Ms. Williams has extensive experience advising clients in M&A transactions, complex licensing and IP commercialization matters and portfolio monetization. Her experience has included major, complex and multi-jurisdictional M&A transactions, commercial ...

Greg has successfully litigated a wide variety of civil litigation matters and commercial litigation matters including energy related matters. Greg’s trial and appeal experience is extensive and he has appeared before every level of court in Alberta. Greg has also appeared before several administrative tribunals. He has been involved in the resolution of numerous disputes, using mediation, judicial dispute resolution and other ADR forums. Greg became a partner in Parlee McLaws in 1990. ...

Fred Erickson is a partner in the Energy – Oil & Gas Group. His practice focuses on significant transactional and advisory engagements, and he has extensive involvement as lead counsel in major acquisitions and dispositions, restructuring projects, project developments, joint ventures, financings, asset monetizations, securitizations and other transactional matters. Fred has considerable experience in most aspects of the upstream oil and gas and natural gas liquids (NGL) industries,...

Brendan’s practice is focused on mergers, acquisitions and project development. Clients value Brendan for his experience acting for public and private companies on a broad range of complex transactions and commercial arrangements. Frequently acting on domestic and cross-border merger and acquisition transactions, including share and asset purchases and sales, Brendan also advises on joint ventures, partnerships, project development and commercial arrangements and corporate reorganizatio...

Michael is Head of the Advocacy Group in the Calgary office. He represents numerous domestic and international clients in all major areas of commercial litigation, arbitration and alternative dispute resolution. Michael’s dispute resolution philosophy is predicated on the principle that every dispute has unique characteristics and exigencies. Efficient and effective dispute resolution requires a flexible and business outcome oriented approach. His primary focus is to provide decisive ad...

Ray Chartier practises commercial litigation, arbitration and dispute resolution, focusing on matters involving the energy industry, major infrastructure projects and the transportation sector. He also advises a broad range of clients on indigenous law issues, and on environmental, social and governance (ESG) risks, regulation and compliance issues. Ray's clients include project proponents, financial institutions and other stakeholders. Over the years, Ray has been involved in pipeline applic...

Gavin received his Bachelor of Science degree in Biology (Zoology) from the University of Calgary. He then attended the Faculty of Law at the University of Calgary, graduating in 2001. Upon graduation, Gavin clerked at the Court of Appeal and the Court of Queen’s Bench of Alberta. Following his clerkship, Gavin completed his articles at the Calgary offices of a large national law firm, practicing in securities and regulatory matters. He was called to the Alberta Bar in 2002. Gavin joine...

Dana attended the University of Toronto, receiving her Bachelor of Arts degree (Honours) before attending the University of Saskatchewan, receiving her Bachelor of Laws degree in 1992. Dana was called to the British Columbia bar in 1993 and practiced in Vancouver with the well-respected law firm, Hammerberg Lawyers LLP, after spending the early part of her career as in-house counsel. Dana successfully completed transfer examinations and was called to the Alberta bar in 2001, moving to Calgary...

Zafar Jaffer is a top attorney recognized by Best Lawyers in the practice area(s) of Mergers and Acquisitions Law. Zafar, 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 Zafar is held by other top lawyers in the same geographic and legal practice area.