Boston University School of Law

Jeremiah J. O’Sullivan

Lecturer in Law
Of Counsel at McMahon Law Office
Certified Public Accountant in Massachusetts

B.S., Bentley College
J.D., New England School of Law

Mr. O’Sullivan is Of Counsel at McMahon Law Office and a Certified Public Accountant in Massachusetts. He was a Senior Appeals Officer in the Boston office of the Internal Revenue Service, where he worked for 37 years. He focused on complex cases which include valuation issues involving nationally known sports franchises, international taxation issues with competent authority requests, and developing issues such as lease stripping. Mr. O'Sullivan has lectured extensively throughout the I.R.S and is a former adjunct professor in Suffolk University's Master of Science in Taxation Program. He is a certified public accountant and a member of the Massachusetts Bar. Mr. O’Sullivan has been a member of the adjunct faculty since 2003.