Experienced Tax Attorneys

Call Us Confidentially Now: 202-349-4033

Call us confidentially now:

Confidential & Experienced Tax Lawyers

Get Help Now: 202-349-4033

Experienced National & International Washington DC Tax Lawyer


Thorn Law Group has a nationwide practice with an office in the heart of Washington, DC with a tax attorney to meet your specific legal need. We serve clients throughout Virginia, Maryland, Washington, DC, across the United States and around the world. Our clients include individuals, tax professionals, partnerships, trusts, banks, closely-held businesses, accounting firms, law firms, and corporations.  We represent clients in civil and criminal tax litigation and in tax disputes before the Internal Revenue Service, the Department of Justice, state taxing authorities, and in federal courts.


A tax lawyer with our DC firm is dedicated to providing all of his or her clients with the highest level of professional representation available. The attorneys employed by the firm are committed to performing this service for all of our clients, whether their needs are simple or complex. At Thorn Law Group, we pride ourselves on being responsive to and understanding of our clients’ needs, as well as delivering the personal attention necessary to making our clients comfortable in dealing with the complicated legal issues that arise in today’s competitive world.


Kevin E. Thorn is the Managing Partner of the Thorn Law Group

Kevin Thorn is a strong advocate for his broad range of clients who include individuals, tax professionals, partnerships, trusts, banks, closely-held businesses, accounting firms, law firms, and corporations. He is an experienced DC tax attorney with sought after expertise in all stages of civil and criminal tax controversies including international tax law, offshore bank accounts and disclosures, civil examinations, criminal investigations, IRS administrative appeals, collection alternatives, ethics investigations, and other types of complex civil litigation.

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Mary Elizabeth Rinaldi is the Technical Director of Tax Controversies at Thorn Law Group

Mary Elizabeth Rinaldi's exceptional understanding of the intricacies of International Tax Law reporting and the IRS Audit process have served her ability to successfully represent her clients in civil and criminal tax litigation and in tax disputes before the Internal Revenue Servicethe Department of Justicestate taxing authorities, and in federal court. Ms. Rinaldi's experience includes serving as a law clerk for the Honorable Laurence J. Whalen of the United States Tax Court and as a trial attorney for the Internal Revenue Service. Throughout her career as a Washington, DC tax attorney, she has represented a broad range of clients including individuals, partnerships, trusts, closely-held businesses, and corporations.

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Thorn Law Group

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Over 80 years of expertise for your complicated tax law issues.

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Hear What Our Clients Have To Say

"Kevin E. Thorn and the tax attorneys at Thorn Law Group are exceptional. When I came to them, I had just received a letter from the Department of Justice concerning an undisclosed bank account at a Swiss bank. I thought I was going to go to jail and lose everything I had worked for just because my family and my business are international. Mr. Thorn's knowledge of the tax laws and his skills in presenting my situation to the IRS and Department of Justice proved superior!"
Emma Zdon