Philip Olsen focuses his practice on state and local tax consulting and litigation. Philip has more than 20 years of experience litigating or resolving major tax controversies before administrative boards, superior courts, bankruptcy court, state appeals courts, and state supreme courts. Philip has represented municipalities and property owners in property tax appeals, and also has experience in unclaimed property consulting and audit defense.

A frequent public speaker on state and local tax and litigation issues, Philip has addressed organizations such as the  Council on State Taxation, Tax Executives Institute, Institute for Professionals in Taxation, Massachusetts Bar Association, Boston Bar Association, Massachusetts Continuing Legal Education, and the Massachusetts Society of Certified Public Accountants.