Mr. Thorn’s expertise is highly sought after across the country and around the globe in all stages of civil and criminal tax controversies including, international tax law, IRS voluntary disclosures, offshore bank accounts and foreign asset disclosures, civil examinations, criminal investigations, IRS administrative appeals, collection alternatives, ethics investigations, and other types of complex civil litigation.

His broad range of clients includes high net individuals, individuals, tax professionals, partnerships, trusts, banks, closely-held businesses, accounting firms, law firms, and corporations. He is highly skilled, intellectually bright, and respected by professionals across the Nation. Mr. Thorn is one of the “Go To” tax attorneys in Washington, DC for complicated tax issues when high profile individuals or big name companies need important legal issues resolved.

Mr. Thorn represents taxpayers in all types of federal and state civil and criminal tax controversy and litigation matters. He has advocated on behalf of his clients before the Internal Revenue Service, the Department of Justice, the United States Tax Court, the Internal Revenue Service’s Office of Professional Responsibility, the Internal Revenue Service’s Whistleblower Office, and DC, Virginia, Maryland and other state taxing authorities.

Work History

Work History


1995 - 1998


Nova Southeastern University School of Law




Washington DC Business Tax Attorney

Washington DC Criminal Tax Lawyer

Washington DC International Tax Attorney

Washington DC International Tax Lawyers

Washington DC Tax Lawyer

Washington DC Tax Attorney