Javier O. Martinez | State and Federal Criminal Defense Attorney

My job as a criminal defense attorney is to defend people accused of criminal offenses in state and federal court. During my career, I have been successful in the most complex and serious criminal cases. Examples of the cases that I have successfully defended are the following:

  • Possession of drugs (One gram to kilograms of drugs)
  • Federal crimes
  • Conspiracy charges
  • Human trafficking
  • Illegal entry into the United States
  • Homicide
  • DWI
  • Domestic violence charges
  • Aggravated assault
  • Intoxication manslaughter
  • Theft
  • Money laundering
  • Felonies
  • Misdemeanors

If you are facing criminal charges in the United States, whether they are state or federal, you need an experienced criminal defense attorney to fight for you. My firm’s goal is to try to obtain the best possible outcome for you and your family. Call us today at (832) 589-4244 for a free case evaluation.


  • 100% criminal cases
  • Licensed in federal court
  • Trial experience in misdemeanor and felony cases
  • Federal court experience
  • Bilingual

Our Mission

Bad choices can put our freedom at risk. My job as a criminal defense attorney is to defend our citizens against government prosecutors who are trying to take their liberty away. My services are honest, professional, and of great quality in the field of criminal law.

Meet Javier

Javier Martinez

Tweets by @JavierMtzLaw

Major win for the firm this week. Young man accused of threatening another man with a gun. 2nd degree felony. Client was innocent and State agreed with us. Case dismissed. 💪🏽#criminaldefense

Cargos retirados para un muchacho acusado de robo agravado. Peleamos contra la fiscalia enseñandoles que no habia suficiente evidence para juzgarlo #abogadocriminalhouston #abogadopenalista

El viernes pudimos ganar un caso de un "dreamer" que estaba siendo acusado de algo que no hizo. Por nuestros esfuerzos, el muchacho va a poder quedarse en los Estados Unidos! #abogadocriminalhouston #abogadopenalista

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Javier Guzman

Javier Guzman

“Javier Martinez is one of the best attorneys I know. He was a mentor of mine during law school, and I’ve watched him evolve into a great advocate over the years. I know he takes his job seriously, and he’s been doing great things in Harris County. Many lawyers take the easy way out and convince their clients to plead guilty — that’s not the case with Javier. He’s a true fighter, and he will do his very best to get a positive result for his clients.”

Armand Jawanmardi

Armand Jawanmardi

“I give Mr. Martinez my highest recommendation. I know him personally and professionally he has always displayed himself as someone with high ethics and a strong sense of the law. I have met with clients on the immigration side of things after Mr. Martinez has assisted them in their criminal matters and they have always been thrilled with their outcome and his work. I have referred clients to Mr. Martinez whom he has successfully helped as well. I would recommend Javier Martinez without reservation for any criminal defense, federal crime, and appellate matter.”