Rothenberg Tax Law is a boutique law firm with a niche focus in federal and state tax controversy and multistate state and local tax consulting. Mr. Rothenberg is the former Practice Leader for Tax Controversy Services for a top 15 accounting firm. He represents clients before the Internal Revenue Service and various state revenue departments, with special expertise in matters before the New York Department of Taxation and Finance, the New York City Finance Department, and the New Jersey Division of Taxation. Among other areas, he specializes in residency taxation, sales and use taxation, responsible person assessment defense, remote worker taxation, and multistate nexus analyses, as well as tax audits and appeals for businesses and business owners. Mr. Rothenberg is a frequent lecturer and author on numerous tax topics, and he genuinely enjoys his work assisting clients from high-net-worth individuals to smaller mom/pop operations with their tax entanglements.