Erin E. McQuiggan


  • Erin E. McQuiggan
  • Phone: +1 215 979 1914

    Import to Address Book

  • Duane Morris LLP
    30 South 17th Street
    Philadelphia, PA 19103-4196
  • Duane Morris LLP
    1540 Broadway
    New York, NY 10036-4086

New York Phone Number:  +1 212 471 1874

Erin E. McQuiggan advises private clients on trusts and estates law, focusing on comprehensive estate planning, probate and taxation matters. Her practice includes estate, gift and generation-skipping transfer tax planning, pre-transaction tax planning, closely held business planning (limited liability companies, limited partnerships and business succession planning), charitable planning and multi-generational wealth transfer planning. Ms. McQuiggan also counsels individual and corporate executors, trustees and families with respect to complex estate and trust administration.

Ms. McQuiggan has broad experience in the preparation and funding of a wide variety of estate planning vehicles including wills, revocable trusts and irrevocable trusts, such as spousal lifetime access trusts, asset protection trusts, grantor retained annuity trusts, life insurance trusts and dynasty trusts. Ms. McQuiggan’s clients include wealth creators and business owners who have built success in private and public companies, including life sciences, technology and manufacturing.  Her practice focuses on sophisticated pre-transaction planning around gift, estate and income taxes, and includes the preparation of gift, estate and inheritance tax returns.

Ms. McQuiggan is well-versed in analyzing balance sheets, guiding the decision-making process and implementing holistic, thoughtful estate plans. She prides herself in distilling complex and confusing concepts into understandable language.

Prior to entering private practice, Ms. McQuiggan served as law clerk to the Honorable Joseph D. O’Keefe, Administrative Judge of the Philadelphia Court of Common Pleas, Orphans’ Court Division.

Ms. McQuiggan is a graduate of Temple University Beasley School of Law (LL.M. 2022), The State University of New York at Buffalo Law School (J.D. 2007) and The Pennsylvania State University (B.A. 2004). 

Areas of Practice

  • Private Client Services
  • Estate Planning
  • Wealth Transfer Tax Planning
  • Probate
  • Estate & Trust Administration
  • Family Offices, Banks and Trust Companies


  • Pennsylvania
  • New Jersey
  • New York


  • Temple University Beasley School of Law, LL.M. (Tax), Estate Planning Certificate, 2022
  • State University of New York at Buffalo School of Law, J.D., 2007
  • The Pennsylvania State University, B.A., 2004


  • Duane Morris LLP
    - Partner, 2022-present
    - Special Counsel, 2019-2021
  • Royer Cooper Cohen Braunfeld LLC
    - Counsel, 2016-2019
  • Nachmias Morris & Alt PC
    - Associate, 2013-2015
  • Obermayer Rebmann Maxwell & Hippel LLP
    - Associate, 2010-2013
  • Smith, Aker, Grossman & Hollinger LLP
    - Associate, 2008-2009
  • Philadelphia Court of Common Pleas, Orphans’ Court Division
    - Law Clerk to the Hon Joseph D. O’Keefe, Administrative Judge, 2007-2008

Professional Activities

  • Philadelphia Estate Planning Council
    - Board Member
    - Co-Chair, Sponsorship Committee
  • Philadelphia Bar Association
    - Probate and Trust Law Section

  • Graduate, The Mid-Atlantic Fellows Institute of the American College of Trust and Estate Counsel (ACTEC)

Honors and Awards

  • Listed in Pennsylvania Super Lawyers, 2017-2022

Selected Publications

  • Tax and Estate Planning Considerations in the Current Environment, Probate and Trust Law Section of the Philadelphia Bar Association Newsletter Article, October 2020

Selected Speaking Engagements

  • “What’s Mine is Mine, What’s Yours is Mine”, US Deloitte Wealth Advisory Program, Estate Series Podcast, July 2021
  • Hot Topics in Estate Planning, Nittany Lion Networking Breakfast, Penn State Smeal College of Business/Smeal Club Philly, June 2021
  • Financial and Estate Planning in the Current Environment, Philadelphia Estate Planning Council Roundtable, June 2020
  • One Year After the Tax Cuts and Jobs Act (TCJA): Drafting and Planning in light of the Higher Exemptions, Philadelphia Bar Association, March 2019

  • Fixing Broken Trusts, Pennsylvania Bar Institute, June 2016 and June 2018

  • Drafting Better Trusts, Pennsylvania Bar Institute, August 2017

  • A Primer on Grantor Trusts, 2016 Legal and Tax update for Professional Service Firms, Royer Cooper Cohen Braunfeld LLC, November 2016
  • “I Don’t Normally Practice in Orphans’ Court, But…,” Estate Law Institute, Pennsylvania Bar Institute, 2013 and 2011

  • “Using Trusts as Building Blocks for Your Client’s Estate Plan,” Pennsylvania Bar Institute, July 2013

  • “Death & Taxes,” Pennsylvania Bar Institute, August 2011