Commercial Litigation

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Clients call upon the experienced trial lawyers of Williams Montgomery & John to provide resolute and effective advocacy in complex business and financial disputes. The Chicago law firm's commercial litigation group, our largest practice, has established a record of achieving successful results for clients in federal and state courts across the country.

Business Attorneys with Extensive Experience

Each Chicago commercial attorney at our firm has extensive jury trial, bench trial and arbitration experience in complex commercial disputes involving multimillion-dollar claims for breach of contract, construction delays, consumer fraud, breach of franchise agreements, insurance bad faith, antitrust violations and unfair business practices. Our business lawyers also have experience with financial disputes involving breach of fiduciary duty, wrongful dissolution of corporations and partnerships, corporate oppression, trade secrets, restrictive covenants, securities and commodities fraud, real estate litigation, and substantive bankruptcy matters.

Williams Montgomery & John has represented clients such as CBS Broadcasting, 3M, ConocoPhillips Petroleum Company, Goodyear Tire & Rubber Co., Honeywell International, Indeck Energy, Siemens Energy, Inc., IBM, Genentech, Inc., The Terminix International Co., Johns Manville International, Inc. and Whirlpool Corporation. In addition to large corporations, our commercial litigators also have represented hedge funds, brokerage firms, pension plan trustees, entrepreneurs and family owned businesses.

Representative Cases

As examples of results we have achieved for our clients in commercial litigation matters, we:

  • Won a decision of "not guilty" for Siemens Westinghouse in a complex arbitration in Washington, D.C. of a construction lawsuit brought by Athens Generating involving claims for tens of millions of dollars.
  • Successfully defended a major hedge fund firm in a lawsuit for breach of contract, breach of fiduciary duty and fraud.
  • Served as lead trial and appellate counsel in an automobile franchise act lawsuit against a major auto manufacturer that has had a major impact on Illinois statutory law.
  • Successfully represented a director and a member of the audit committee in a multimillion-dollar breach of fiduciary duty lawsuit by a trustee in bankruptcy involving a major publicly traded company.
  • Won a multimillion-dollar verdict for a national construction company in a lawsuit for breach of contract and delay damages.

A more descriptive list of representative matters can be found by clicking on the "Representative Matters" link above.

The firm's commercial litigation practice is led by partners C. Barry Montgomery and Peter C. John.  For more information about the firm's commercial litigation practice, please contact Mr. John at 312.443.3210 or

Representative Matters

  • Smith as Bankruptcy Plan Trustee for Estate of Boston Chicken, Inc. v. Arthur Andersen, et al.

    U.S. District Court, District Court of Arizona

    Represented individual director and member of audit committee of Boston Chicken, Inc. in suit alleging breach of fiduciary duty claims arising out of the Boston Chicken bankruptcy. Settled after extensive discovery and while summary judgment motions were pending.

  • Whirlpool Corporation v. Sensata Technologies, Inc. and Texas Instruments Inc.

    Circuit Court of Cook County, Ill.

    Represented consumer product manufacturer Whirlpool in product liability lawsuit brought against supplier to recover damages caused by recall of 1.8 million refrigerators. Successfully resolved on eve of trial.