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William J. O'Sullivan litigates business disputes and commercial property disputes at both the trial and appellate levels. He frequently represents owners of closely held businesses in disputes with partners.  Attorney O'Sullivan has tried cases in such areas as implied partnership, employment, trade secret, non-competes, fraud, alter ego, civil theft, landlord and tenant, property condemnation, easement, and franchise law. He also handles creditors’ rights work, such as collections, foreclosures, replevins, bankruptcy nondischargeability proceedings, and suits on foreign judgments. 


Bill has published more than two dozen law articles in legal and business journals, including the Connecticut Bar Journal’s “Business Litigation Year in Review” for each year since 2010. He has lectured on such diverse topics as recent developments in business litigation, civil procedure, legal ethics, the legal duties of departing employees, the calculation of damages in business cases, and the legal history of major league baseball.



Contact info:

Phone: 860-258-1993


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William J. O'Sullivan - America's Top 50 Lawyer - Business Law - Connecticut

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