John M. Heffernan | Attorney

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About John
John Heffernan focuses his practice on the defense of professional liability claims brought against attorneys, accountants, architects, engineers, broker-dealers and other professionals. John also has extensive experience defending corporate clients in complex commercial cases and has defended Fortune 500 companies in a variety of matters including multi-party securities, commercial, products liability and intellectual property cases. John has tried numerous matters as lead counsel in both state and federal courts across the United States. His extensive trial experience across a range of corporate and technical areas, makes him particularly well-suited to the complex issues that arise in professional liability and commercial litigation.
In 1989 John graduated from the University of Notre Dame with a Bachelor of Arts degree in Accounting and obtained his Juris Doctorate degree in 1996 from the Case Western Reserve University School of Law. John is admitted to practice before the Supreme Courts of Ohio and Illinois and is also admitted to practice before numerous United States District and Circuit Courts of Appeal.
Significant Representative Matters
Education
University of Notre Dame B.A.
Marshall Dennehey Warner Coleman & Goggin Highlights
Transportation & Shipping, Construction, Civil Rights, Professional Malpractice, Constitutional Law, Workers' Compensation; Ethics; Personal Injury; Intellectual Property; Education; Products Liability; Toxic Mold & Tort; Dispute Resolution; Employment; Leisure; Mental Health; Litigation; Environmental Law; Insurance; State and Local