Professor Galler teaches courses in individual income taxation, corporate taxation, international taxation, tax policy and ethics in federal tax practice. She is the founding Director of the Hofstra Law School Federal Tax Clinic, in which Hofstra Law students represent low income taxpayers in disputes with the Internal Revenue Service and New York State Department of Taxation and Finance.
Professor Galler practices and has practiced tax law with several international law firms based in New York City in the areas of international taxation, corporate taxation, administrative practice, and court procedure. Professor Galler is a frequent speaker on tax ethics and is the lead author of Regulation of Tax Practice, published Carolina Academic Press.
Professor Galler has chaired the Standards of Tax Practice Committee and the Teaching Taxation Committee of the ABA Section of Taxation. She is a fellow of the American College of Tax Counsel.