Mireille Eastman is the Taxpayer Advocate at the Massachusetts Department of Revenue (DOR). Previously, she was an attorney in the Rulings & Regulations Bureau, and before that she was an attorney in the Litigation Bureau. She is the primary author of several state tax regulations and numerous administrative pronouncements, and has litigated or co-litigated several high-profile DOR cases. In 2020, she was awarded the DOR Commonwealth Citation for Outstanding Performance. In 2017, she was awarded the Manuel Carballo Governor’s Award for Excellence in Public Service for her work on the Governor’s Regulatory Review Project Team. She was also awarded the DOR Performance Recognition Award for her work on the Language Access team (2023) and the DOR Pilot Mediation Program (2013). Ms. Eastman briefly worked in private practice before joining DOR and holds an undergraduate degree from Hunter College and a law degree from Boston University Law School.