Atty. 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.
Family Law Attorney · Serving Calgary, AB
Profile Summary
About Marcus M. Sixta at a Glance
Marcus M. Sixta is a family law attorney based in Calgary, Alberta, practicing at Crossroads Law. Educated at University of Victoria (—) and University of Calgary (—). Recognitions include Best Lawyers in America — Family Law (2026), Best Lawyers in America — Additional Areas of Practice: (2026), and Best Lawyers in America — Alternative Dispute Resolution (2026). Serves clients in Calgary, AB and the surrounding metropolitan area.
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About 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
Practice Areas Explained
Marcus M. Sixta's Areas of Legal Practice
Each practice area below reflects the types of cases Marcus M. Sixta handles, with a practical overview of what that area of law involves and how it may apply to your situation in Calgary.
Family Law in Calgary
Family law attorneys handle divorce, child custody, child support, adoption, prenups, and protective orders. Find verified family lawyers near you.
Marcus M. Sixta is one of 185,688 family law attorneys indexed nationally. Browse family law attorneys in Alberta →
Jurisdictional Context
Why Local Counsel Matters in Calgary
Practicing law in Alberta. Legal matters in Alberta are governed by state-specific rules of civil and criminal procedure, statutes of limitations, and substantive law. Cases originating in Calgary are typically filed in the local municipal court or the appropriate Alberta state district court, depending on subject matter and amount in controversy. An attorney licensed in Alberta brings working knowledge of local procedural deadlines, judicial practices in this venue, and the substantive law that applies to cases brought here. Out-of-state attorneys generally cannot represent clients in Alberta courts without local counsel or pro hac vice admission.
Calgary Courts and Legal Process
Choosing a Calgary-based attorney means your counsel already knows the local docketing timelines, preferred filing formats, and how individual judges typically rule on procedural motions — details that only come from practicing in this jurisdiction day after day. That local familiarity can translate to better strategy, faster filings, and fewer costly surprises.
Looking for additional Alberta attorneys? Browse all attorneys in Calgary or all attorneys in Alberta.
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Professional Profile
Why Clients in Calgary Choose Marcus M. Sixta
Selecting an attorney is one of the most consequential decisions you can make when a legal matter arises. Below are the core qualities that distinguish Marcus M. Sixta's practice in the field of family law.
Focused Family Law Practice
Concentrating on family law means Marcus M. Sixta's knowledge of relevant statutes, case law, and procedural nuances stays current — unlike generalist practices that spread attention across unrelated fields.
Local Presence in Calgary
A Calgary-based practice means Marcus M. Sixta attends hearings in the same courthouses, knows the local clerks, and understands the unwritten scheduling norms that affect every case filed here.
Case Types
Common Legal Issues Marcus M. Sixta Handles in Calgary
Below is a representative sample of the types of matters Marcus M. Sixta has experience with under Alberta law. If your situation involves one of these case categories, this attorney may be well positioned to help you understand your options.
This list is illustrative, not exhaustive. Contact Marcus M. Sixta directly to discuss the specifics of your situation.
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How People Find Marcus M. Sixta Online
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Marcus M. Sixta's Practice Areas & Specializations
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