Philip S. Olsen

Mr. Olsen is a tax attorney and shareholder with Davis Malm & D’Agostine, P.C. His focus is on state and local tax consulting and litigation. He has over 25 years’ experience litigating and resolving major tax controversies before courts and administrative boards. While Mr. Olsen has a successful track record of litigating cases, he has also successfully and discretely resolved hundreds of cases short of trial. His experience spans just about every area of state and local tax, including corporate income, sales and use, personal income, estate, real and personal property, and unclaimed property. In addition to advocating for taxpayers on state level taxes, Mr. Olsen represents property owners and municipalities in local property tax appeals. Before entering private practice, he served as a senior trial attorney and litigation supervisor for the Massachusetts Department of Revenue where he represented the Department in many landmark tax cases. This experience gives him an insider perspective of the issues his clients face. Mr. Olsen is a frequent public speaker on state and local tax and litigation issues. He has addressed organizations such as the Council of State Taxation, Tax Executives Institute, Institute for Professionals in Taxation, Massachusetts Bar Association, Boston Bar Association, Massachusetts Continuing Legal Education and Massachusetts Society of Certified Public Accountants. Mr. Olsen earned his J.D. degree from Suffolk University Law School.