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IMMIGRATION ATTORNEY PROFILE

Martin P. Duffey

Immigration Attorney in Philadelphia, Pennsylvania

Cozen O'ConnorPhiladelphia, PA

  • Remote / Online: No

Accepting New Clients

Martin P. Duffey is a lawyer practicing antitrust & trade law, environmental and natural resources, complex litigation matters and 7 other areas of law. Martin received a B.A. degree from St. Joseph's University in 1986, and has been licensed for 37 years. Martin practices at Cozen O'Connor in Philadelphia, PA.

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Licensing / Bar Status

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StatePennsylvania
Bar StatusNot yet verified(see state bar record)
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About the Attorney

Martin P. Duffey is a lawyer practicing antitrust & trade law, environmental and natural resources, complex litigation matters and 7 other areas of law. Martin received a B.A. degree from St. Joseph's University in 1986, and has been licensed for 37 years. Martin practices at Cozen O'Connor in Philadelphia, PA.

Languages

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Practice Areas

Immigration Matters Handled

  • Petitions for review, mandamus actions and other federal court litigation involving immigration agencies.

Education / Credentials / Memberships

Education

  • J.D. Temple, Emory University School of Law
  • B.A., St. Joseph's University

Credentials

  • Admitted to practice in Massachusetts U.S. Court of Appeals, Third Circuit U.S. Court of Appeals, Fourth Circuit U.S. Distri (2009)
  • Admitted to practice in Pennsylvania (1989)
  • Admitted to practice in New York (2008)
  • Peer Reviewed

Memberships

  • Philadelphia and American Bar Associations Philadelphia Trial Lawyers Association

Office & Service Areas

Street map showing the immigration attorney's office location
Primary Office

Cozen O'Connor
One Liberty Place, 1650 Market St., Philadelphia, PA 19103

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Service Areas

Serving clients in Philadelphia and throughout Pennsylvania.

Consultation & Fees Overview

Consultations are available to discuss your immigration goals, review your situation, and outline potential options. Fees and representation details are discussed during the consultation and may vary based on the type and complexity of your case.

  • Consultation options are shared on request.
  • Fees discussed during the consultation
  • Engagement terms and scope of representation provided in writing

Helpful Immigration Guides & Related Resources

Explore practical guides on common immigration topics to help you make informed decisions.

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H-1B, L-1, O-1 & MoreGUIDEAdjustment of Status:
A Complete GuideGUIDEU.S. Citizenship &
Naturalization: What to Know

AllImmigrationLawyers.com is a directory and professional network, not a law firm or government agency. Information is provided for general informational purposes only and does not constitute legal advice.
For legal advice about your specific situation, please contact an attorney directly.

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Profile updated Nov 2, 2026. Source: imported listing.