Atty. John J. Chapman
John’s practice is in corporate and commercial litigation, and includes contract disputes, real estate litigation, shareholder remedies, fiduciary obligations, insolvency and class actions. He has appeared before all levels of trial and appellate courts and before domestic and international arbitral tribunals.
Profile Summary
About John J. Chapman at a glance
John J. Chapman is a business and litigation attorney, practicing at Miller Thomson LLP. They have 43+ years of legal experience, licensed to practice since 1983. Admitted to practice in Ontario (1983). Recognitions include Best Lawyers in America — Corporate and Commercial Litigation (2026).
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About
- John’s practice is in corporate and commercial litigation, and includes contract disputes, real estate litigation, shareholder remedies, fiduciary obligations, insolvency and class actions
- He has appeared before all levels of trial and appellate courts and before domestic and international arbitral tribunals
- A significant percentage of his practice is in the Ontario Commercial Court
- He has also represented members of the National Hockey League in salary arbitrations with their players
- He has successfully acted as lead counsel on multi-million dollar disputes, which have included: the supply of defective equipment in an Australian zinc refinery
- cost overruns and delays in a hazardous waste decontamination project
- litigation surrounding the closure of major anchor supermarket tenants in retail malls
- the restructuring of a major beverage manufacturer plagued by highly acrimonious shareholder relations
- the enforcement of security by major Canadian financial institutions
- and mass investor frauds
- Many of his cases involve the need to organize complex financial technical or scientific facts so that they can be properly understood by the court
- Given his experience with such diverse and complex litigation matters, he is comfortable working with clients to create and monitor litigation budgets and in using technology to minimize litigation costs where possible
- John has written many articles on topics encountered in complex commercial litigation published in leading Canadian law journals
Practice Areas Explained
John J. Chapman's Areas of Practice
Each practice area below reflects the types of cases John J. Chapman 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.
John J. Chapman is one of 501,317 business attorneys indexed nationally. Browse business attorneys →
Civil litigation attorneys for breach of contract, business disputes, civil rights, and class action lawsuits.
John J. Chapman is one of 454,532 litigation attorneys indexed nationally. Browse litigation attorneys →
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