From 1969 through 1977, Jack was a Trial Attorney in the Tax Division of the United States Department of Justice, Washington, D.C. While with the Tax Division, Jack handled cases in the United States Courts of Appeals, with incidental work on briefs in opposition in the Supreme Court, from 1969 through 1974, and handled trials in the United States District Courts from 1974 through March 1977. Jack has been in the private practice of law in Houston, Texas since leaving the Tax Division and currently focuses his practice principally upon tax controversy and tax litigation matters, including both civil and criminal.
Jack is an adjunct Professor of Law at the University of Houston Law Center where he teaches Tax Procedure and Tax Fraud and Money Laundering to undergraduate and graduate law students. Jack has prepared two self-published texts -- Federal Tax Procedure and Federal Tax Crimes. The Federal Tax Procedure Book is available for purchase here. The Federal Tax Crimes Book will be available for purchase in the near future. Jack and colleagues have published a Tax Crimes book in the LEXIS-NEXIS graduate tax series, here. Jack also has two related blogs -- a Federal Tax Crimes Blog, here, and a Federal Tax Procedure Blog, here. Jack regularly participates in tax seminars and tax professional groups. Jack has also authored several tax articles in leading tax publications on tax litigation and other tax subjects.