Heckscher, Teillon, Terrill & Sager, P.C.
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John A. Terrill, II


Phone: 610-940-4172
Email: jterrill@htts.com
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Jack Terrill's practice largely focuses on estate planning for clients with complex assets, such as businesses, real estate, and other significant assets. He is a nationally recognized authority on asset protection planning, which involves estate planning with attention given to the preservation and protection of assets from undue exposure to litigation or other claims.

Jack's practice also includes charitable planning (particularly creating and operating foundations), estate settlement, and fiduciary litigation. He is also frequently engaged as an expert witness in matters involving estate and trust litigation. He has acted as a guardian ad litem to assist judges in evaluating complex estate planning and trust administration disputes.

Jack is a member of the American Bar Association and its Real Property, Probate, & Trust Law, Taxation, and Law Practice Management Sections; the Pennsylvania Bar Association and its Real Property, Probate, & Trust Law Section; the Philadelphia Bar Association; and the Philadelphia Estate Planning Council.

He has been listed as a top trust and estate lawyer in Philadelphia's Best Lawyers, named a Pennsylvania Super Lawyer by Philadelphia Magazine, and received the highest rating for legal ability and ethical standards from LexisNexis Martindale-Hubbell Peer Review Rating. Jack is also recognized in Chambers and Partners High Net Worth guide as Band 1 Leader in the Field in Private Wealth Law in Pennsylvania.

Jack is a fellow of the American College of Trust and Estate Counsel where he served as the President in 2019. He was the founding chair of ACTEC's Asset Protection Committee and is a member of the College's Professional Responsibility, Asset Protection and Legal Education committees. He chaired ACTEC's Task Force on FATF (the Financial Action Task Force) until 2016.

Jack was a lecturer at the University of Pennsylvania Law School where he taught Trusts and Estates. Before that, he was an adjunct professor in the graduate tax program at Villanova University for 15 years. He continues to teach and speak several times every year at professional meetings and bar associations across the country. His topics include asset protection planning and the impact of FATF on law practice.


  • Asset Protection Planning
  • Charitable Planning
  • Estate Administration
  • Estate Planning
  • Fiduciary Litigation
  • Trusts


  • University of Pennsylvania Law School, J.D., cum laude (1976)
  • Dartmouth College, A.B. magna cum laude, Phi Beta Kappa (1973)


  • Pennsylvania (1976)


  • Philadelphia Bar Association
    • Chair, Probate and Trust Law Section (1995)
  • Natural Lands Trust
    • Chair, Board of Trustees (2013 - 2018)
    • Vice Chair, Board of Trustees (1999 - 2013)
  • American College of Trust and Estate Counsel
    • Immediate Past President (2020)
    • President (2019)
    • President-Elect (2018)
    • Vice President (2017)
    • Executive Committee (2013 - 2017)
    • FATF Task Force Chair (2013 - 2016)
    • Pennsylvania State Chair (2012 - 2015)
    • Board of Regents (2010 - 2016)
    • Asset Protection Committee Chair (2006 - 2009)
  • Drexel University Thomas R. Kline School of Law
    • Member, Law School Advisory Board (2017 - Present)
  • The Baldwin School
    • Trustee (1998 – 2005)


  • Lecturer, Graduate Tax Program, Villanova University School of Law (1987 – 2003)
  • Lecturer at Law, University of Pennsylvania (2010 – 2011)