Marcus M. Sixta

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 family law cases should be settled outside of court, and he has extensive experience and training in collaborative divorce, mediation, and arbitration. Marcus is a certified collaborative divorce lawyer and an accredited family law mediator, and he is frequently sought out as a mediator and arbitrator.

A Preferred Approach

Drawing on his past as a social worker, Marcus excels at mediating challenging family law cases. He believes that mediation has the potential to resolve serious disputes in ways that benefit all parties involved including children. Marcus recognizes that mediation should not be a ridged process and he has a flexible mediation style, responding to the needs of the parties. This is why he uses technology to settle disputes remotely throughout British Columbia and Alberta and he is also willing to mediate disputes without lawyers representing the parties.

Global Outreach in Family Law

Marcus is also no stranger to litigation, and has a reputation for success in highly complex arbitration and court matters. He regularly litigates high net-worth matters involving intricate business arrangements, forensic accounting, offshore assets, complex incomes, and has represented business leaders, professional athletes, and actors. Marcus has successfully represented clients in Provincial Court, the Alberta Court of Justice, the BC Supreme Court, the Court of King’s Bench of Alberta, and the Court of Appeal.

Marcus' expertise also extends across borders. He has represented clients in cases involving countries like the United States, Australia, Taiwan, Mexico, the UK, and more. Additionally, he has represented clients regarding the Hague Convention on International Child Abduction. This is on top of helping many clients with jurisdictional issues between Alberta and British Columbia.

Public Advocacy and Community Involvement

As an active member of the legal community, Marcus was a longtime member of the Canadian Bar Association of BC’s committee for unbundled legal services, and he regularly volunteers with Access Pro Bono of British Columbia. He is a contributor to the Law Society of Alberta’s Family Law Practice Manual and a presenter for the Canadian Bar Association, Continuing Legal Education Society of BC, and the Legal Education Society of Alberta. Marcus is also an advocate for legal reform and alternative practice models, and has been interviewed by many media outlets, podcasts and publications.