A dedicated pro bono practitioner, Andrew has challenged the conviction of a death row inmate on habeas corpus grounds and assisted in the representation of a homeowner in a mortgage foreclosure action.

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Andrew currently serves as an Advisory Board Member for the newest editions of Lexis Nexis' "Pennsylvania Civil Pre-Trial Practice" and "Pennsylvania Civil Discovery," working with the guide's general editors, the Honorable Daniel J. Anders and Bobby Ochoa, III.

Andrew served on the team that defended the City of Philadelphia in the highly watched Beverage Tax Litigation. The team's successful representation allowed the city to generate crucial revenue to fund thousands of pre-kindergarten seats and critical improvements to community and recreation centers.

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Andrew M. Erdlen, a shareholder in the Litigation Department, has represented clients in a wide range of commercial litigation, including contract, fraud, and intellectual property disputes, in both private litigation and government enforcement actions.

Andrew represents clients in matters arising from the rights, obligations, and duties of privately-held companies and their managers and stakeholders, such as shareholder and partnership disputes and breach of fiduciary duty actions.

Andrew has also advised employers and employees with respect to restrictive covenants, intellectual property rights, and other terms of employment.  Andrew takes a thoughtful and efficient approach to problem solving, designed with business-oriented solutions in mind.

He often represents parties in disputes concerning the validity of government actions, including with respect to preemption and governmental authority, and has advised both private actors and government bodies.

Andrew maintains an active pro bono practice. He is on the board of Philadelphia VIP, a community legal services organization for low-income individuals facing legal problems which threaten their basic needs. He has also represented prisoner clients in civil rights litigations, which raise fundamental constitutional issues regarding due process and the conditions of confinement.

Andrew earned his law degree, cum laude, from Fordham University School of Law, where he was a Notes & Articles Editor of the Fordham Law Review and a member of the Moot Court Board. He earned his undergraduate degree in history from the University of Pennsylvania.

Prior to joining the firm, Andrew was a litigation associate at an AmLaw 100 firm in New York, where he focused on corporate and securities litigation.

Representative Matters

  • Represented a national entertainment company in a telecommunications patent litigation involving multimillion dollar damages claims
  • Part of team representing the City of Philadelphia in a successful defense of the Philadelphia Beverage Tax, including at the trial court and appeals to the Pennsylvania Commonwealth Court and Supreme Court
  • Represented a minority shareholder in contentious business divorce involving allegations of mismanagement and shareholder oppression, resulting in settlement and buyout
  • Represented a private preschool against charges of unlawful discrimination in violation of state and federal law, stemming from complaints that the school discriminated against a student based on the student’s disability, including in an appeal to the New Jersey Appellate Division

Honors & Awards


Notes and Articles Editor, Fordham Law Review, Fordham University School of Law

Member, Moot Court Board, Fordham University School of Law

Publications & Lectures

Presenter, “Preparing for a Transitional Event in a Closely Held Company: What if the Owners Disagree?” Hangley Aronchick CLE, October 19, 2021

“Crafting Motions to Seal After Third Circuit Avandia Decision,” Law360.com, August 23, 2019 (with Jon L. Cochran)

“Books and Records Requests in the Era of Text Messages,” Law360.com, July 22, 2019 (with Jason A. Levine)

Advisory Board Member, Pennsylvania Civil Pre-Trial Practice and Pennsylvania Civil Discovery (General Editors Hon. Daniel J. Anders and Bobby Ochoa, III), LexisNexis

“Timing is Everything: Markets, Loss, and Proof of Causation in Fraud on the Market Actions,” 80 Fordham L. Rev. 877 (2011)

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Memberships & Community

Philadelphia VIP, Board of Directors

American Bar Association, Section of Litigation

American Bar Association, Young Lawyers Division

University of Pennsylvania, American Inn of Court

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