Jack is a principal in the National Multistate Tax and Multistate Tax Controversy Services team in New York, and a liaison to the Washington National Tax-Multistate practice as a New York controversy and technical lead. He specializes on all aspects of state and local tax matters, including controversy matters, for corporations and passthroughs, including income/franchise and sales and use tax, and have deep experience serving high-net-worth individuals in personal income tax matters, including residency.