About Mr. William J. Phelan IV

Philadelphia family law attorney William (Bill) J. Phelan, IV has a host of experience and accolades.

Both prior to and during his time at Cordell & Cordell, Mr. Phelan has appeared in hundreds of hearings on behalf of his clients, and his efforts secured results that have provided both financial security and peace of mind for those who had little hope until he took their case.

Domestic relations matters offer a plethora of options and issues that Mr. Phelan is experienced to handle, whether he is helping his clients to understand their case, negotiating and communicating with the opposing side, or meticulously preparing for and litigating a case at trial.

Mr. Phelan is experienced in handling all manner of appeals for family law cases, specifically handling various matters in Pennsylvania’s appellate courts. He is a member of an elite team of Cordell Appellate attorneys and regularly works with counsel in the firm across the United States to consult and assist on family law appeals.

“I enjoy working with my clients, who are usually in a difficult position in their lives, to help them reach a resolution that is not only in their favor, but also allows them to put their minds at ease and continue on with their daily lives,” Mr. Phelan said.

Mr. Phelan attended the American Bar Association Family Law Trial Advocacy Institute.

Awards

The Best Lawyers in America® for Family Law | 2026

Pennsylvania Super Lawyers | 2025

In 2019 and from 2023-25, Mr. Phelan was selected for the Irish Legal 100, an annual compilation of the most distinguished legal professional in the United States of Irish ancestry.

Pennsylvania Super Lawyers, Rising Stars | 2016-2017 & 2022

Washington D.C. Super Lawyers, Rising Stars | 2014-2015

In 2023, the Pennsylvania Bar Association’s Disability Services Committee received the Pennsylvania Bar Association’s Award for Outstanding Leadership in Diversity, Equity and Inclusion, under Mr. Phelan’s leadership.The Appellate Lawyers selected Mr. Phelan in 2022 for its collection of leading appellate lawyers from across the country based on the results of peer nominations, in-depth research, and client feedback.

Mr. Phelan was recognized in 2016-17 and 2022 as a Pennsylvania Rising Star in the family law practice area by Super Lawyers, a Thomson Reuters rating service of outstanding lawyers. He was recognized as a Rising Star from 2014 through 2017 in both Washington, D.C. and Pennsylvania.

In 2016, the American Institute of Family Law Attorneys named Mr. Phelan one of the 10 Best Family Law Attorneys for Client Satisfaction in Pennsylvania.Mr. Phelan was named one of the National Academy of Family Law Attorneys’ Top 10 Under 40 Attorneys for the state of Pennsylvania for 2016.

In 2016, Mr. Phelan was named to The National Advocates Top 100 List. The list recognizes the Top 100 attorneys from each state or region who serve individuals and families needing attorneys to represent them in the American legal system.

Who’s Who Among Law Professionals (Montclair), 2010-12G.P. Smith Award for Exceptional Dedication to Journal of Contemporary Health Law & Policy

Publications/Speaking Engagements

“U.S. v. Rahimi: Examining a Federal Firearm Case and PFAs,” Pennsylvania Bar Association – Law in the Family podcast, Sep. 26, 2024

“Love Reigns Supreme: Review of Recent Family Law Cases before the U.S. Supreme Court,” presenter, Cordell & Cordell Domestic Litigation Forum, Apr. 5, 2024

“Legal Update – A Year in Review” at Pennsylvania Family Law From A to Z, virtual CLE, National Business Institute, Apr. 16, 2024

“Child Custody and Support: Current Issues and Solutions” at Family Law Practice Tips 2024 virtual CLE, National Business Institute, Feb. 26, 2024 & Aug 20, 2024

“Significant PA Appellate Court Cases 2023 – Webcast,” presenter, Pennsylvania Bar Institute, Aug. 31, 2023

“Pennsylvania Family Law 2022 Appellate Review,” presenter, Pennsylvania Bar Association Appellate Advocacy Committee’s Lunch & Learn Series, Jan. 26, 2023

“Hot Topics in Disability Accommodations Law,” moderator, Pennsylvania Bar Institute online CLE, Aug. 2, 2022

“How Appealing: Tips, Considerations, and Basics of Appeals for the Family Law Litigator,” presenter, Cordell & Cordell Domestic Litigation Forum, Apr. 15, 2022

“Pennsylvania Divorce Law 101 – Restraining Orders,” virtual CLE presentation, mylawCLE.com, Nov. 1, 2021

“Celebrating 30 Years of the Americans with Disabilities Act,” moderator, Pennsylvania Bar Institute online CLE, November 12, 2020

Mr. Phelan appeared on RVN-TV’s program “Dr. Sue & You” on July 15, 2020, to discuss the various ways family law has been affected by the COVID-19 pandemic. “Family Law Clients with Disabilities: Identifying Issues and Providing Solutions,” 42 Pennsylvania Family Lawyer 50-52 (2020)

Mr. Phelan was on the faculty for the Pennsylvania Bar Institute’s 2018 Family Law Institute. “United States Supreme Court, Citing Federal Pre-Emption, Blocks State Courts’ Ability to Indemnify Non-Military Spouse for Decrease in Share of Military Pension upon Military Member’s Receipt of V.A. Disability Payments; Case Note: Howell v. Howell, 137 S.Ct. 707 (U.S. 2017),” 40 Pennsylvania Family Lawyer 25-27 (2018)

“Recognizing and Respecting Disability Rights in Family Law Cases,” presenter, Doris J. Freed American Inn of Court, Feb. 13, 2018

“Contempt of Court and Family Law Cases,” presenter, The Bucks County American Inn of Court, Nov. 27, 2017.Book review, The Ugly Laws: Disability in Public, The Journal of the American Academy of Psychiatry and the Law, Vol. 41, No. 1 (2013)

“Issues on Qualifying for the Bar,” organizer and presenter, tenBroek Disability Law Symposium, National Federation of the Blind, Baltimore, MD, Apr. 19, 2012

“How to Represent Social Security Claimants with Mental & Physical Disabilities,” moderator, ABA online CLE course, August 24, 2011

“Kicking Down the Door to Employment I: Of Mentors and Schedule A,” presentation, American University Washington College of Law, “Assisting Law Students with Disabilities in the 21st Century,” Mar. 10, 2011“Goal III Report: A report on the status of the participation of persons with disabilities in the American Bar Association and its divisions, sections, and forums.” (eds. 2008-2012)

“Comments from the American Bar Association on Nondiscrimination on the Basis of Disability; Accessibility of Web Information and Services of State and Local Government Entities and Public Accommodations,” to U.S. Dep’t of Justice, 35 Mental & Physical Disability L. Rep. 15 (2011)

The Second National Conference on the Employment of Lawyers with Disabilities: A report from the American Bar Association for the Legal Profession (2009), Co-Editor; “Statistical and Other Information on Lawyers with Disabilities: A New Beginning Amidst Gaps and Unanswered Questions,” with John W. Parry

“Best Practices for Recruiting, Hiring and Retaining a Diverse Legal Staff,” presentation, National Disability Rights Network, Training and Advocacy Support Center Annual Conference, Baltimore, MD, Mar. 16, 2009

“Ignored No Longer: Contributions of the Common Law of Agency to Principal-Agency Theory and Congressional Leadership.” 45 Studies in Law, Politics, and Society, 235-254 (2008); presentation, Pennsylvania Political Science Association Annual Meeting, Kutztown, PA, Mar. 2007

“Political Gerrymandering After LULAC v. Perry: Considering Political Science for Legislative Action.” 32 Seton Hall Legislative Journal 89-121 (2007)

 

Awards

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Services

Areas of Law

  • Litigation
  • Appellate Practice 1
    • Appeals
  • Americans with Disabilities Act 1
    • Disabilities
  • Other 1
    • Family

Experience

  • Bar Admission & Memberships
    Admissions
    2007, Pennsylvania
    2008, District of Columbia
    2014, Maryland
    2026, New Jersey
    U.S. District Court, Eastern District of Pennsylvania
    U.S. District Court, District of Columbia
    Memberships
    Pennsylvania Bar Association, Family Law Section, Disability Services Committee, Chair (2020-2026), Nominations Committee (2022, 2024), Appellate Advocacy Committee
    Philadelphia Bar Association, Family Law Section
    American Bar Association, Family Law Section, Judicial Division, Appellate Judges Conference – Council of Appellate Lawyers
    Doris Jonas Freed Matrimonial American Inn of Court, President (2021-2022)
    Executive Board Member (2017-2023)
    District of Columbia Bar Association
    Brehon Law Society (a legal organization comprised of attorneys and judges of Irish ancestry), Councilmember (2023 – Present)
  • Education & Certifications
    Law School
    The Catholic University of America, Columbus School of Law
    Class of 2007
    J.D.
    Senior Editor for The Journal of Contemporary Health Law & Policy
    Other Education
    The Catholic University of America
    Class of 2004
    B.A.
    magna cum laude; Classical Civilizations

    The Catholic University of America
    M.A.
    Congressional and Presidential Studies (Politics)
  • Personal Details & History
    Age
    Born in 1982
    Philadelphia, July 16, 1982

Contact Mr. William J. Phelan IV

Litigation Partner | Co-Chair, Cordell Appellate Practice Division at Cordell & Cordell
4.9
13 reviews

1601 Market Street, Suite 2230Philadelphia, PA 19103U.S.A.

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Attorneys FAQs

  • Is this attorney admitted to the bar in more than one state?
    Yes, Mr. William J. Phelan, IV is admitted to practice in District of Columbia, Maryland, New Jersey and Pennsylvania.
  • Is this attorney Martindale-Hubbell Peer Review rated?
    Yes, Mr. William J. Phelan, IV has a 4.7 Peer Rating from Martindale-Hubbell.
  • How many attorneys are in this law firm?
    Cordell & Cordell has 218 attorneys at this location.
  • What law school did this attorney attend?
    Mr. William J. Phelan, IV attended The Catholic University of America, Columbus School of Law.
  • What year was this attorney's law firm established?
    Cordell & Cordell was established in 1990.