Aaron Rogers

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...

Lara Mason’s practice encompasses a wide range of commercial litigation matters, including commercial disputes, transnational and cross-border disputes, professional liability matters, insurance coverage disputes and class actions. Ms. Mason has appeared at all levels of court in Alberta, before the Supreme Court of Canada, and before the Alberta Utilities Commission. She has also participated in a variety of alternative dispute resolution processes.Ms. Mason joined our Calgary office a...

Rahim Vasanji is a member of Verjee Law’s Personal Injury and Litigation & Dispute Resolution Group , where he focuses on advocating for individuals who have suffered serious injuries. His practice is centered on personal injury and insurance disputes with additional experience in commercial litigation and corporate transactional matters. In his personal injury work, Rahim represents clients in motor vehicle accidents, catastrophic injury claims and fatality matters. He is committed...

Karen Pirie, KC is a lawyer recognized by Best Lawyers in the practice areas of Health Care Law, Medical Negligence and Professional Malpractice Law. Karen practices law in Calgary, Alberta Best Lawyers has recognized Karen Pirie, KC since 2018. The Best Lawyers recognition is based on a peer-review survey of lawyers in the same geographic region and legal practice area. The recognition reflects the professional regard in which Karen Pirie, KC is held by other lawyers.

Krysta Ostwald earned her B.A. in 1993 and her LL.B. in 1996, both from the University of Victoria. She articled with Fraser Milner and was called to the Alberta Bar in 1997. Since then she has practiced exclusively in the area of family law. Krysta worked with the firms of Laurie Allen & Associates, Turnbull Boyes and Soby Boyden Lenz, before creating Widdowson Kachur Ostwald Menzies LLP with her partners. Krysta emphasizes resolving disputes without unnecessary conflict. She utilizes ma...

Zafar Jaffer is a lawyer recognized by Best Lawyers in the practice area of Mergers and Acquisitions Law. Zafar practices law in Calgary, Alberta Best Lawyers has recognized Zafar Jaffer since 2025. The Best Lawyers recognition is based on a peer-review survey of lawyers in the same geographic region and legal practice area. The recognition reflects the professional regard in which Zafar Jaffer is held by other lawyers.

Colin is a partner in the Calgary office of Lawson Lundell. He is a member of the firm’s Business Law, Corporate Commercial, Corporate Finance & Securities and Mergers & Acquisitions Groups. His practice covers a broad range of commercial transactions, including the structuring and implementation of share and asset acquisitions, mergers, financings, and corporate reorganizations involving strategic acquirers, investors, vendors, entrepreneurs, family business owners, family offi...

Paul Pidde is a lawyer recognized by Best Lawyers in the practice areas of Corporate and Commercial Litigation and Insurance Law. Paul practices law in Calgary, Alberta Best Lawyers has recognized Paul Pidde since 2026. The Best Lawyers recognition is based on a peer-review survey of lawyers in the same geographic region and legal practice area. The recognition reflects the professional regard in which Paul Pidde is held by other lawyers.

Brent focuses his practice on business and personal tax planning, leading projects for restructuring, split-ups, acquisitions, asset divestitures and financings. He represents clients in tax disputes, representing clients before the Canada Revenue Agency, Department of Justice and Department of Finance. From the Alberta Government to the Institute of Chartered Accountants, Brent has worked with a variety of government, industry and volunteer organizations to improve tax laws. For the past 30 ...

Scot D.E. Menzies is a lawyer recognized by Best Lawyers in the practice areas of Family Law and Family Law Mediation. Scot D.E. practices law in Calgary, Alberta Best Lawyers has recognized Scot D.E. Menzies since 2019. The Best Lawyers recognition is based on a peer-review survey of lawyers in the same geographic region and legal practice area. The recognition reflects the professional regard in which Scot D.E. Menzies is held by other lawyers.