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Fighting for Rights of the Accused

The Law Offices of Heather J. Mattes limits its practice to criminal defense in the state and federal court systems. A former public defender and prosecutor as well as a private criminal defense attorney, Heather Mattes has conducted investigations, tried cases and negotiated dispositions from both sides during thirty years of practice. She has the capacity to maintain compassion for clients while vigorously advocating for them based ON the facts of the case and the law. 

Contact the Law Offices of Heather J. Mattes today if you need legal assistance with any of the following:

  • White Collar
  • Felony Offenses
    • Sex Offenses and Related Issues
    • Megan’s Law Cases
    • Aggravated Assault and Related Charges
    • Robbery and Related Charges
  • Driving Under the Influence
  • Misdemeanor Offenses
  • Criminal Investigation
  • Grand Jury Investigations

Call 610-431-7900 today to arrange your free initial consultation.

Attorney Profile

Attorney Heather J. Mattes


  • Pennsylvania
  • Federal District Court: Eastern District of Pennsylvania

Admitted To The Bar:

  • 1984


  • Villanova University School of Law, J.D., 1984
  • Pennsylvania State University, B.A., 1981

Professional Memberships and Achievements:

  • Pennsylvania Bar Association
  • Pennsylvania Criminal Defense Lawyers, Board of Directors
  • Delaware County Bar Association
  • Chester County Bar Association
  • American Bar Association

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