Atty. Michael R. Mumby
Michael Mumby is a partner with the Business Law and Financial Services Law Group at Harrison Pensa, and a co-managing partner at the firm. His practice includes incorporation, professional corporations, corporate restructurings, partnership and shareholder agreements , mergers and acquisitions , leases and other commercial contracts , as well as institutional financing .
Profile Summary
About Michael R. Mumby at a glance
Michael R. Mumby is a business attorney based in London, Ontario, practicing at Harrison Pensa LLP. Recognitions include Best Lawyers in America — Corporate Law (2026). Serands clients in London, ON and the surrounding metropolitan area.
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About
- Michael Mumby is a partner with the Business Law and Financial Services Law Group at Harrison Pensa, and a co-managing partner at the firm
- His practice includes incorporation, professional corporations, corporate restructurings, partnership and shareholder agreements, mergers and acquisitions, leases and other commercial contracts, as well as institutional financing
- He represents individuals, small businesses and private corporations and works extensively with business owners, health professionals, medical clinics and franchisees
- Michael routinely assists clients with intergenerational corporate succession planning
- He has delivered numerous presentations for industry groups and business associations on a variety of corporate governance matters and has authored and presented continuing legal education materials on several topics
- Michael is active in the recruitment, retention and development of our junior lawyers as a mentor and previously as a member of Harrison Pensa’s student recruitment and associate development committees for over ten years
Practice Areas Explained
Michael R. Mumby's Areas of Practice
Each practice area below reflects the types of cases Michael R. Mumby handles, with a brief overview of what that area of law covers.
Business attorneys advise founders and growing companies on entity formation, contracts, financing, M&A, and dispute resolution.
Michael R. Mumby is one of 501,317 business attorneys indexed nationally. Browse business attorneys in Ontario →
Jurisdictional Context
Why local counsel matters in Ontario
Practicing law in Ontario. Legal matters in Ontario are governed by state-specific rules of civil and criminal procedure, statutes of limitations, and substantive law. Cases originating in London are typically filed in the local municipal court or the appropriate Ontario state district court, depending on subject matter and amount in controversy. An attorney licensed in Ontario brings working knowledge of local procedural deadlines, judicial practices in this andnue, and the substantive law that applies to cases brought here. Out-of-state attorneys generally cannot represent clients in Ontario courts without local counsel or pro hac vice admission.
Looking for additional Ontario attorneys? Browse all attorneys in London or all attorneys in Ontario.
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