Grant is a co-chair of the Litigation Department. He is a national business litigator with broad experience in both federal and state courts at the trial and appellate levels. He has also represented clients in alternative dispute resolution forums and has been asked to serve as both an arbitrator and mediator on numerous occasions. Grant has authored numerous articles and has frequently been asked to lecture on a wide variety of topics.
His practice involves litigating a full range of business and commercial matters across the country, including contract disputes, shareholder and partnership disputes, real estate disputes, securities fraud, government investigations, trade secrets and restrictive covenants, insurance coverage and employment disputes. In the past five years, Grant has been lead counsel in 33 different states. Clients praise Grant for his steady and discerning counsel citing the calm and insightful guidance he provides to allow them to achieve successful outcomes in their business and legal dealings.
Grant is frequently asked to handle complex, high-exposure litigation for his clients and serves as national ligation counsel for a number of market-leading businesses.
Grant serves as a board member to the Law Firm Alliance, a strategic international alliance of law firms established in 2000, to provide legal clients greater access to high-quality and cost-effective legal services around the globe. The LFA includes more than 50 firms and 2,500 attorneys throughout North America, South America, Europe and Africa. In 2024, Grant was elected Chair-Elect of the Board of Directors of the Law Firm Alliance.
Outside the office, Grant serves as chair of the Board of Directors of Youth Development United, a 501(c)(3) providing mentoring, nutrition education and career discovery opportunities to children from underserved communities, and Chester-Upland Youth Soccer/Soccer For Success, a 501(C)3 providing leadership skills to children in underserved communities through access to the “beautiful game.” Grant previously was the Chairman of the Board of Directors of Art-Reach, a 501(c)(3) located in Philadelphia that creates, advocates for and expands accessible opportunities in the arts for physically, mentally and economically challenged individuals. He has been recognized as one of the region’s individuals who provide the leadership, connections and action that hold the community together when he was named a 101 Top Connector by Leadership Philadelphia. Grant served two terms as President for the College of William and Mary’s Alumni Association in Philadelphia and he was previously nominated to the MS Leadership Class for the National Multiple Sclerosis Society’s Delaware Valley Chapter.
Delaware School of Law, J.D., cum laude
College of William and Mary, B.B.A. (Finance)
Pennsylvania
U.S. Court of Appeals, Third Circuit
U.S. Court of Appeals, Ninth Circuit
U.S. District Court, Eastern District of Pennsylvania
Member, Board of Directors, Law Firm Alliance
Chair of the Board of Directors, Chester-Upland Youth Soccer/Soccer For Success
Chair of the Board of Directors, Youth Development United
Former Chair of the Board of Directors, Art-Reach
Member, Phi Kappa Phi
Former President, College of William and Mary Alumni Association, Philadelphia Chapter
Member, MS Leadership Class, National Multiple Sclerosis Society
Member, Philadelphia’s 101 Top Connectors, Leadership Philadelphia
Executive Council, Haverford School Alumni Board of Directors
Recognized as a leading General Commercial Litigation attorney in Pennsylvania by Chambers USA (2025)*
Recognized on the “U.S. Elite — Philadelphia” list by Legal 500 for Commercial Disputes (2025-2026)*

Recognized as a “recommended lawyer” in the practice area of General Commercial Disputes by Legal 500 (2026)*
Named to “The Best Lawyers in America©” list for Litigation (2021-2026)*
Named to “The Best Lawyers in America©” list for Litigation – Insurance (2025-2026)*
Martindale-Hubbell “AV Preeminent” rated.*
Panelist, “Issues in Insurance,” Philadelphia Real Estate Council 2024 Winter Quarterly Meeting, December 18, 2024
Mentioned, “People in The News – October 18, 2024,” The Legal Intelligencer, October 18, 2024
Press Release, “Grant Phelan Elected Chair-elect of Law Firm Alliance Board of Directors,” October 10, 2024
Mentioned, “Klehr Harrison adds to litigation leadership,” Philadelphia Business Journal, October 4, 2023
Press Release, “Klehr Harrison Adds to the Litigation Department Leadership,” September 18, 2023
Press Release, “Law Firm Alliance Adds Klehr Harrison Partner to Board of Directors,” November 14, 2022
Author, “Effective Trial Presentation”
Author, “Application of Spoliation Doctrine in Manufacturing Defect Cases”
Author, “Pennsylvania Premises Liability Update”
Author, “A Summary of Pennsylvania Law”
Author, “Pennsylvania Insurance Coverage”
Business Disputes
Insurance Coverage Disputes
Employment Disputes
Real Estate Disputes
"Grant Phelan is very responsive, excellent at resolving disputes and extremely knowledgeable in all areas of the law."