Mario J. DeLuca

Partner, Tax Services Group

Contact Information

Mario J. DeLuca, CPA, JD, LLM is the partner-in-charge of Aronson's Tax Services Group. He has more than 25 years of experience in the accounting profession, providing comprehensive tax services and advice to a diverse cross-section of clients.

Prior to joining Aronson, Mario worked for several large national and regional accounting firms, where he held a variety of tax practice leadership positions and served clients primarily in the real estate, government contracting, and private equity industries. He also has extensive experience in mergers and acquisitions. In addition, he is serving as an Adjunct Professor at American University’s Kogod School of Business in the Graduate Tax Program (MST) since 2005.

Mario graduated from Northeastern University in 1989 before receiving his juris doctorate from Suffolk University Law School in 1995 and a master of laws degree in taxation from the Boston University School of Law in 2000. He is a CPA in Maryland, Virginia and Massachusetts and a member of the Bars of the District of Columbia, Commonwealth of Massachusetts, U.S. Tax Court, and the U.S. Federal Court - District of Massachusetts. Active in the community and profession, Mario sits on the Board of Directors of the Fairfax County Chamber of Commerce, and he is an active member of the AICPA and the American Bar Association. In 2013, SmartCEO named Mario as one of the Greater Washington area's 'Power Players.'


  • Bachelor of Science Business Administration from Northeastern University in 1989
  • Juris Doctorate from Suffolk University Law School in 1995
  • Master of Laws in Taxation from the Boston University School of Law in 2000
  • Certificate from Duke University Fuqua School of Business Leadership Program in 2010


  • Taxation of pass-through entities, including partnerships, LLCs, and S-corporations.
  • Mergers and acquisitions / transaction advisory
  • Choice of entity / structuring


  • American Institute of Certified Public Accountants
  • Adjunct Professor, American University Kogod School of Business Graduate Tax Program
  • Board Member, Fairfax County Chamber of Commerce


  • SmartCEO Power Players Award, 2013


  • Journal of Taxation, “Opportunity Knocks for Taxable REIT Subsidiaries,” March 2000
  • Journal of Taxation, “S-Corporations and ESOP Shareholders: New Rules Can Create a Perfect Match,” April 1998
  • Journal of Real Estate Taxation – Tax Workshop “Recent Ruling Stake Out the Services Position on Section 1031; Disregarded Entities,” Fall 1998


Share With Us