Brendan MacArthur-Stevens

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...

John Cassell is the Canadian co-head of our cybersecurity and data privacy practice. John assists clients with all manner of privacy and cybersecurity law issues including: responding to complex local and international cybersecurity incidents, advising on risk management strategies, assisting clients with access to information requests, complying with Canada's anti-spam legislation and proceedings before the offices of the Alberta and federal privacy commissioners.

Marcus is an award-winning family lawyer practicing in Alberta and British Columbia, honoured as one of Canada’s Top 25 Most Influential Lawyers and featured in Best Lawyers in Canada in 2024, 2025, and 2026. As the founder of both Crossroads Law and Coach My Case, he is recognized for disrupting the practice of law to provide a more client-centred legal experience while advocating for access to justice. Marcus is passionate about consensual dispute resolution. He believes that most fam...

Kris Noonan is a partner in the Employment & Labour Group. His practice focuses on employment and labour law, privacy law and human rights. Kris is a management-side lawyer that represents a diverse group of employers in both union and non-union work environments, with various human resources and labour relations issues, including drafting employment agreements, workplace policies, restrictive covenants and non-disclosure agreements, termination practices and procedures, discipline and gr...

Aubrey is a partner based in our Calgary office and practices in all areas of commercial real estate including purchase, sale, development, financing and leasing. He has extensive experience in complex real estate transactions including both pre-development lands and lands with existing office, retail or industrial developments. He has completed transactions with various unique aspects such as environmental contamination, appurtenant water licenses, long term ground leases for development, sy...

Amanda Marsden is a senior family and estate planning lawyer with Crossroads Law who brings a unique blend of expertise. Before focusing exclusively on family law, Amanda honed her skills at a prestigious national law firm, where she delved into the complexities of corporate law, gaining valuable insights that now give her an edge in handling high net-worth property settlements for her clients. A Holistic Approach t o Family Law Beyond her legal prowess, Amanda brings a distinctive background...

Craig Story is a partner in the Capital Markets and Mergers & Acquisitions Groups. He has served on the firm’s Partnership Board, as well as on the management group for the Calgary office. Craig’s practice focuses on corporate and securities law, including public and private capital markets offerings, private equity and venture capital funds, mergers and acquisitions and corporate governance. His corporate finance practice includes advising issuers, major investors and underwr...

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.

Gregory F. Peterson is a top attorney recognized by Best Lawyers in the practice area(s) of Corporate Law and Private Funds Law. Gregory F., who practices law in Calgary, Alberta, has been recognized since 2023. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Gregory F. is held by other top lawyers in the same geographic and legal practice area.

Marcus Archer focuses on public and private debt and equity financings, mergers and acquisitions, restructurings, reorganizations and purchases and sales of businesses and assets, acting for corporations, private equity, investment banks and creditors. He also assists clients with corporate governance, regulatory compliance, continuous disclosure and general corporate matters. Mr. Archer is a director or corporate secretary of a number of public and private corporations. Mr. Archer joined our...