John W. Porter handles federal gift, estate, and income tax litigation and controversy work, including disputes and litigation with the Internal Revenue Service. Mr. Porter is nationally recognized for his expertise in representing taxpayers before and against the IRS in estate and gift tax controversies, especially those involving hard-to-value assets such as interests in family limited partnerships and limited liability companies. Mr. Porter concentrates in litigation, including gift, estate, and income tax disputes; valuation of business interests; fiduciary issues. He is a Fellow of the American College of Trust and Estate Counsel.

Mr. Porter has served as lead counsel for taxpayers in over sixty cases in the United States Tax Court, and has represented taxpayers in numerous other federal tax audits and appeals. He also frequently advises and represents fiduciaries and beneficiaries of trusts and estates with respect to administration and fiduciary duty issues.