Colena Der

Emi R. Bossio is a top attorney recognized by Best Lawyers in the practice area(s) of Alternative Dispute Resolution, Appellate Practice, Corporate and Commercial Litigation, Labour and Employment Law and Product Liability Law. Emi R., who practices law in Calgary, Alberta, has been recognized since 2014. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Emi R. is held by other top lawyers in the same geographic and legal practice area.

Paul is a Co-Leader of Fasken’s Real Estate group and a Partner in the Calgary office. He advises on a wide variety of complex matters for real estate clients, including purchase and sale transactions of office, industrial and retail properties, mortgage financing, leasing, and development and planning matters. Paul acts for a broad range of clients, including pension funds, life insurance companies, major landlords, and institutional lenders. Paul also has significant experience in neg...

Jonathan is an experienced civil and commercial litigator who advises clients on a broad range of matters, including commercial litigation proceedings, real estate disputes, estate litigation, insurance matters, and class actions. His practice crosses multiple industries, including construction, real estate, and oil and gas. With experience handling a breadth of cases, Jonathan advises on shareholder disputes, oppression remedies, professional negligence matters, complex commercial conflicts,...

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...

Louise Campbell has been a lawyer since 1983. Her practice consists of family and related areas of law. Her approach is to find a resolution which is within the law that represents the concern of all parties, including economic, cultural, religious and health issues. She has been mediating since 1995 and has been Collaborative Family Lawyer since 2000. Because they are required in the resolution of family matters, she is also an excellent legal source for real estate, wills and estates. Areas...

Andrew Koeman is a family law and divorce lawyer. Andrew graduated from the University of Calgary with a Bachelor of Laws (Juris Doctor) in 2009. He completed his articles with Alberta Justice and continued to work there for two years as a Crown Prosecutor in the Specialized Prosecutions Branch, focusing on complex economic crimes, before he decided to practice family law exclusively. While Andrew has experience in all areas of family law, he developed a practice with a specific focus on comp...

Katharine Zhang is a top attorney recognized by Best Lawyers in the practice area(s) of Trusts and Estates. Katharine, who practices law in Calgary, Alberta, has been recognized since 2026. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Katharine is held by other top lawyers in the same geographic and legal practice area.

Bill practices corporate commercial, construction and energy law, with an emphasis on public-private partnerships and construction contracts. His expertise includes: Public-private partnerships Rail and light rail projects Commercial, residential and mixed-use development projects Power plant and industrial EPC contracts Procurement documents and agreements to design, build and construct any asset Mergers and acquisitions Bill completed his articles with BLG. Before law school, he worked for ...

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

Tom is a leading practitioner in management-side labour and employment law with over 25 years of experience. Applying sound judgment, proactive strategies, and common sense, Tom has successfully represented employers in a wide range of complex and challenging matters. His continued success has earned him recognition from several leading industry guides as well as the respect of both colleagues and clients. With a focus on unionized workplaces, Tom advises and represents employers in labour ar...