Andy Mahon

  • Associate
Photo of attorney Andy Mahon


Lancaster, PA





Andrew Mahon graduated from Fordham University with a B.A. in History and French in 2002. He earned his J.D. in 2007 from Widener University School of Law, graduating with honors. He was a member of the Widener Law Journal. Between college and law school, he spent two years as an English teacher in France.

After law school, Mr. Mahon first worked as a law clerk for the Honorable Penny Blackwell in the York County Court of Common Pleas, then as a staff attorney for the Pennsylvania Immigration Resource (PIRC). As an attorney for PIRC, he represented individuals in removal proceedings who were most in need because of mental illness, past persecution, or poverty. 

He has been an attorney for the Law Office of Troy Mattes since 2010. He is admitted to practice in Pennsylvania, New Jersey, the U.S. District Court for the Middle District of Pennsylvania, and the U.S. Court of Appeals for the Third Circuit. He is also a member of the American Immigration Lawyers Association.

Areas of Practice

  • Immigration

Litigation Percentage

  • 60% of Practice Devoted to Litigation

Bar Admissions

  • Pennsylvania, 2007
  • New Jersey, 2007
  • U.S. District Court Middle District of Pennsylvania, 2010
  • U.S. Court of Appeals 3rd Circuit, 2010


  • Widener University School of Law, Harrisburg, Pennsylvania
    • J.D. – 2007
    • Honors: cum laude
    • Law Review: Widener Law Journal, Survey Staff, 2006 – 2007
  • Fordham University, New York , New York
    • B.A. – 2002
    • Major: History
    • Major: French

Professional Associations

  • American Immigration Lawyers Association, 2009 to Present

Past Positions

  • Pennsylvania Immigration Resource Center, Staff Attorney, 2009 to 2010
  • York County Court of Common Pleas, Law Clerk, 2008 to 2009

Pro-Bono Activities

  • Volunteer Income Tax Assistance Program, 2007 to Present


Troy helped my family get safe asylum in the states. I talked to several lawyers and he was the most sincere and knowledgeable. – Anonymous