Catherine Hamill

PROFESSIONAL EXPERIENCE: Mr. Halt graduated as the gold medal recipient from the University of Saskatchewan in 1986 and in 1988-89 he had the honour of serving as a law clerk to Madam Justice Bertha Wilson of the Supreme Court of Canada. Following his clerkship, Mr. Halt relocated to Calgary and has since practised civil litigation, including insurance with an emphasis on professional liability, corporate commercial litigation, securities litigation, franchise litigation, insolvency, construc...

Jennifer Biernaskie is a litigation strategist who finds solutions. She skillfully analyzes a claim from all sides, considering both the present details and what will happen down the road. The end result is a forward-thinking strategy that shapes a successful future for her clients. Her strong track record for resolving claims is based on skill, creative agreements and common sense in commercial litigation, insurance defence, and administrative law. With particular proficiency in high-complex...

Clay Jacobson is a top attorney recognized by Best Lawyers in the practice area(s) of Corporate and Commercial Litigation and Energy Law. Clay, 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 Clay is held by other top lawyers in the same geographic and legal practice area.

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...

Regina Corrigan is a partner in the Calgary office of the firm, head of the office's Business Law Department and practice group leader for its Intellectual Property Law Department. Regina's practice focuses on the areas of trademarks and technology commercialization. She has significant experience with all aspects of trademark law, including, prosecution, opposition, licensing and rights transfer in Canada. Regina also holds in-depth expertise in the commercialization and development of techn...

Lucy L'Hirondelle is a litigator whose practice encompasses a broad range of commercial litigation matters and international arbitration with an emphasis on oil and gas litigation/arbitration, contractual disputes, management-side employment litigation. She also has experience conducting third-party investigations. Lucy has worked in the Calgary litigation group since 2012 and has appeared before all levels of court in Alberta, the Nova Scotia Supreme Court, and is familiar with Federal Court...

Kirk Litvenenko's core practice areas include: corporate governance, mergers and acquisitions, recapitalization and reorganization transactions and public and private offerings of debt and equity. Kirk is focused on providing elite client service. Kirk builds high-performance internal working teams that are specifically designed to collaboratively service each client's specific and unique needs. Excellent service builds client loyalty and strong relationships, as such, many of the clients for...

Megan L. McMahon is a top attorney recognized by Best Lawyers in the practice area(s) of Health Care Law, Insurance Law and Medical Negligence. Megan L., who practices law in Calgary, Alberta, has been recognized since 2018. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Megan L. is held by other top lawyers in the same geographic and legal practice area.

John is a member of the firm’s Indigenous, Environmental, and Project Development practice groups. His practice includes advising private sector and government clients throughout Canada on Indigenous, environmental, regulatory and natural resources matters. John advises oil sands developers, conventional oil and gas companies, railways, mining companies, utilities and other resource developers on environmental regulatory matters and on Indigenous law matters, including Indigenous consul...

Practising extensively in the area of debt capital markets, Howard MacKichan's primary focus is on private placements by US and Canadian institutional investors in the Canadian energy and resources market. Funds have been placed in Canadian and US dollars, Euros and Pounds Sterling. Mr. MacKichan has been a fellow of the American College of Investment Counsel since 1992, one of only a few Canadian members, and was a member of the committee developing the ACIC's model form agreements. He has s...