Mr. Rizek in Caplin & Drysdale's Washington, D.C., office. He also serves as General Counsel to the firm. Mr. Rizek represents taxpayers in all types of federal civil and criminal tax controversy matters. He also guides clients through IRS audits, prepares administrative claims and protests of IRS actions, and litigates tax and tax-related cases in U.S. district and appellate courts, the U.S. Court of Federal Claims, and the U.S. Tax Court. In recent years, he has represented numerous financial and professional firms in connection with IRS examinations of tax shelters and related compliance and professional ethics issues. Mr. Rizek has a unique history of government service before joining the firm. His combination of practical and policy-level experience in government has given him special insight into the application of the tax laws and IRS procedures, which has been of great value to many of the firm's clients who are faced with complex tax controversies and litigation.