Federal Tax Controversy

IRS Appeals Representation

Federal tax counsel for taxpayers and businesses seeking administrative resolution of disputed IRS examinations, penalties, and other federal tax matters.

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Washington, D.C. Office

800 Connecticut Avenue, N.W.
Suite 300
Washington, D.C. 20006

Direct: +1 202-870-1977

Tysons Office

1750 Tysons Boulevard
Suite 1500
McLean, Virginia 22102

Direct: +1 703-403-1488

Chase Counsel represents taxpayers before the IRS Independent Office of Appeals and in related federal tax controversies. The firm evaluates the factual record, disputed legal issues, procedural posture, and potential litigation risks in seeking administrative resolution when appropriate.

Selected matters only. The firm does not provide routine tax-return preparation services.

Attorney Chase Sizemore, JD, LLM

Principal, Chase Counsel PLLC

Georgetown Tax LLM | Former KPMG Auditor

U.S. Tax Court | Columbia University Graduate Studies

National Institute for Trial Advocacy (NITA) Diploma

30+ Years of Legal Experience

When the stakes are high, the issue is not tax preparation. It is representation.

What We Handle

IRS Appeals Following Examinations

Administrative Appeals before the IRS Independent Office of Appeals.

Written Administrative Protests

Documented objections to examination positions prior to Appeals referral.

Disputed Tax Adjustments

Representation regarding proposed adjustments and IRS examination findings.

Civil Tax Penalties

Disputed accuracy-related and other civil tax penalties.

Collection Due Process Matters

Disputes involving liens, levies, and collection enforcement actions.

Hazards-of-Litigation Analysis

Evaluation of litigation risk and settlement potential.

Settlement Negotiations

Administrative negotiation and settlement discussions.

Matters Proceeding to U.S. Tax Court

Appeals matters that require federal court litigation.

Before you hire a lawyer, know who you are actually hiring.

Why Clients Choose Chase Counsel

Georgetown Tax LLM | U.S. Tax Court | Former KPMG Auditor | Columbia University Graduate Studies | 30+ Years of Legal Experience

Chase Counsel is not a high-volume tax-resolution practice.

Attorney Chase Sizemore personally evaluates and leads each matter, drawing on more than thirty years of legal and advisory experience. He earned an LLM in Taxation from Georgetown University and previously worked as an auditor at KPMG. He is admitted to practice before the United States Tax Court, completed graduate studies at Columbia University, received advanced trial-advocacy training through the National Institute for Trial Advocacy, and has nearly two decades of professional experience in South Korea and China.

Outside his law practice, he founded and leads Teach Them To Fish Foundation, which builds and supports primary schools in rural Cambodia and Uganda for vulnerable children, with particular emphasis on girls' education. His humanitarian service has been recognized with the U.S. Presidential Lifetime Achievement Award, the Royal Order of Cambodia medal, and eight Cambodian Sthapana Cheat gold medals.

His published and forthcoming work includes the legal treatise Nonprofit Stewards, the memoirs The Road to Kitgum and Where the Red Earth Broke, and numerous legal and scholarly articles.

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