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Petty & Associates, PLLC, Attorneys


John Martinez

 Location: Dallas, Texas
 Phone: (214) 905-1420
 Fax: (214) 905-2010

 Attorney John Martinez has practiced law over  38 years. John joined the Dallas office of Petty  & Associates, PLLC as an “Of counsel” attorney  in January of 2016. He is licensed to practice  law in the state of Texas.

John concentrates his practice in Immigration, Criminal and Family Law. He has successfully tried numerous immigration, family, criminal, and civil cases. He has also been working in Immigration Law since 2000. Prior to starting his firm, John worked for as an undercover police officer for the City of Dallas.

John has represented clients in Asylum and Deportation hearings at the Executive Office of Immigration Review in courts across Texas. He has also represented clients in DACA and U-Visa matters.

John is licensed to practice law in Texas. He is admitted to the Circuit Court of Appeals for the Fifth Circuit, as well as every district court in Texas.

John graduated in 1978 from the University of Texas School of Law. Prior to studying law, John graduated from the University of North Texas with an English and Accounting degree. He is a member of the Texas Bar and speaks English and Spanish.

Areas of Practice

  • Immigration Law
  • Federal court litigation
  • Deportation defense
  • Family immigration
  • Naturalization & citizenship
  • Criminal Law
  • Family Law
  • Worker’s Compensation and Personal Injury

Bar Admissions

  • Texas
  • Northern District of Texas
  • Southern District of Texas
  • Western District of Texas
  • Eastern District of Texas


  • University of North Texas, English and Accounting, May 1971
  • University of Texas School of Law, Juris Doctorate, May 1978



English and Spanish

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Naturalization Classes

We give citizenship classes and can provide you assistance in the naturalization process. Classes are held on Saturdays.
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Certified in Immigration

Roy Petty is Board Certified in Immigration and Nationality law by The Texas Board of Legal Specialization.

We Speak your Language

Our attorneys speak Spanish to provide you an excellent service. Nosotros hablamos español.

Committed to your Case

We challenge the system in federal courts. Our creative strategies have obtained the best results for our clients.