MERCER & KEIRNAN
HOUSTON CRIMINAL DEFENSE ATTORNEYS
713.236.9700
917 Franklin St #550 Houston, TX 77002
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Our Firm
Mercer & Keirnan is a criminal defense law firm based in Houston, TX. Defense attorneys Michael D. Mercer and John "Casey" Keirnan co-founded "Mercer & Keirnan" in 2012 to provide high quality, experienced legal representation for anyone accused of a crime. The family tandem of John Keirnan and Michael Mercer have over 40 years of combined experience and are renowned by fellow criminal defense lawyers and by former Mercer & Keirnan clients as one of the best criminal defense firms in the state.
John P. "Casey" Keirnan
Houston Criminal Defense Lawyer
Mercer & Keirnan
917 Franklin St #550
Houston, TX 77002
P: (713) 236-9700
F: (713) 236-1802
email: Jkeirnan@hotmail.com
John P. Keirnan, aka "Casey" Keirnan, has practiced criminal defense in Houston for over 38 years. His cases frequently appear in local and national news media. Mr. Keirnan is renowned both in Texas and around the country as a top criminal defense attorney who truly cares for the people he represents.
Practice Areas
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Online Solicitation of a Minor
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Violent Crimes
Mercer & Keirnan
917 Franklin St #550
Houston, TX 77002
P: (713) 236-9700
F: (713) 236-1802
email: mikedmercer@gmail.com
Michael D. Mercer
Houston Criminal Defense Lawyer
Houston criminal defense lawyer Michael D. Mercer worked for the Harris County District Attorney's office for one year before founding the criminal defense law firm of Mercer & Keirnan in 2012. Former clients often rave about the incredible results Michael achieves for them in their time of need. Michael handles all misdemeanor and felony charges. He practices criminal defense in Houston, Harris County and the surrounding counties of Fort Bend, Montgomery, Brazoria and Galveston.
Client Reviews
MERCER & KEIRNAN
Average Rating: 5 out of 5 (11 reviews)
"I hired Mercer and Keirnan because of their experience handling DWIs and other charges. Working closely with them throughout my case, it became very clear that I had made the right decision..."
by T. M. December 30, 2018
"Never been in trouble before and now I couldn't bond out of jail and had a court appointed lawyer who gave me little hope. I found defense attorney Casey Keirnan and Michael Mercer because of their experience as a theft defense lawyer. They replaced my court appointed attorney and everything changed."
by D. O. August 27, 2018
"I hired a top Houston drug lawyer with Mercer and Keirnan to defend my possession of a Controlled Substance Case. After a free consultation with Criminal defense attorney Michael Mercer, Mercer and Keirnan signed on to my case and after a few months my felony drug charge was dismissed!"
by RG One February 5, 2019
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)