
MERCER & KEIRNAN
HOUSTON CRIMINAL DEFENSE ATTORNEYS
713.236.9700
917 Franklin St #550 Houston, TX 77002
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Houston Criminal Defense Attorneys Mercer & Keirnan
Looking for an Experienced Criminal Defense Attorney in Houston?

Are you or a loved one looking for an experienced criminal defense attorney in Houston? With over 38 years of experience, Mercer & Keirnan Criminal Defense Attorneys is a wise choice to help you fight your misdemeanor or felony charge.
The decisions you make early on in the case are critical to achieving a favorable outcome. Call 713-236-9700 for a free evaluation and speak directly with experienced Houston criminal defense attorneys John P. "Casey" Keirnan and Michael Mercer.
Over 38 Years of Experience
Defense attorney Casey Keirnan has four decades of experience in criminal defense, including:

Harris County Lawyer of the Year
Attorney John P. "Casey" Keirnan was awarded Lawyer of the Year in 2014 by his colleagues in the Harris County Criminal Lawyers Association

Law Offices of Mercer & Keirnan
Browse our "In the News" section and discover the nationally renowned criminal defense attorneys at Mercer & Keirnan.
Top Assault Attorneys in Houston
Criminal defense attorneys Casey Keirnan and Michael Mercer of Mercer & Keirnan are some of the top assault attorneys in Houston. For over 38 years, Casey Keirnan has successfully represented people charged with assault and aggravated assault, assault on a family member, domestic violence and all other assault charges. People hire Mercer & Keirnan because we are highly successful in getting assault charges dropped and dismissed. Come in or call 713-236-9700 for a free consultation and let Mercer & Keirnan assault attorneys show you how we will defend your assault case.
Types of Assault Charges

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Assault-Bodily Injury
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Aggravated Assault with a Deadly Weapon
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Aggravated Assault-Serious Bodily Injury
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Assault on a Family Member
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Felony Assault-Impeding Breath
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Continuous Assault on a Family Member
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Assault on a Peace Officer
Experienced Criminal Defense for Drug Charges
Arrested for drug possession? Mercer & Keirnan defense attorneys have provided experienced criminal defense for drug charges in Houston for over 38 years. The 4th Amendment protects your right to be free from unreasonable searches and seizures. Your right to privacy extends not only to your person and home, but also to your vehicle. Remember that you have the right to refuse an officer's search of your vehicle. If your constitutional rights were violated as a result of an illegal search, call a Houston drug lawyer at Mercer & Keirnan today.
Houston DWI attorney John P. "Casey" Keirnan has fought DWI/DUI charges in Houston for over 38 years. Mr. Keirnan has considerable trial experience in the field of criminal defense, particularly defending DWI charges. Don't let police or prosecutors intimidate you into giving up your right to a trial by jury. Protect your rights and hire a Houston DWI attorney from Mercer & Keirnan who won't back down from a fight. Contact us for a free evaluation and discover potential defense strategies for your DWI case.
Mercer & Keirnan - Harris County Criminal Defense Attorneys
Harris County Criminal Defense Attorneys John "Casey" Keirnan and Michael Mercer of Mercer & Keirnan defend people charged with any and all misdemeanor or felony criminal charge. In 2014, Mr. Keirnan was awarded "Lawyer of the Year" by his colleagues in the Harris County Criminal Lawyers Association for the incredible results he achieved defending his clients. In 2010, the Harris County Criminal Lawyers Association awarded Mr. Keirnan the "Unsung Hero's Award" after Mr. Keirnan became the first attorney in Texas to successfully argue a motion to declare the Texas death penalty statute unconstitutional.
Attorneys in and around Harris County agree that John "Casey" Keirnan is one of the best criminal defense attorneys in Texas. Anyone who is arrested or charged with a crime in Houston can speak with Mr. Keirnan or Mr. Mercer directly about their misdemeanor or felony charge by calling 713-236-9700 24 hours a day, 7 days a week.

Top Criminal Defense Attorney in Houston

Top DWI Attorney in Houston

Top Assault Defense Lawyer and Drug Lawyer Casey Keirnan

Top Criminal Defense Attorney in Houston
Harris County Criminal Lawyers Association (2014)