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Houston DWI Attorneys
Experienced DWI Defense Attorney in Harris County

DWI defense attorney Michael D. Mercer has a proven track record of success defending DWI charges in Houston and Harris County, Texas. For 15 years, Mr. Mercer has fought hard for Texans charged with DWI, challenging police and prosecutors to prove each and every case against his clients.
Your best possible chance of successfully fighting a DWI charge in Harris County is to work with an experienced DWI attorney who knows how to defend your rights. Call us now for a free consultation and speak with a top Houston criminal defense attorney about your DWI case.
Facing DWI /DUI charges in Houston? Contact us at (713) 236-9700 today for a free consultation.

DWI Defense Attorney Michael Mercer defends the following DWI and alcohol related charges in Houston, Harris County, Texas:
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DWI 1st Offense
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DWI 2nd Offense
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DWI 3rd Offense or greater
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DWI Arrest involving Marijuana, THC Vape Pens or Synthetic Marijuana
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DWI with a child passenger
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Public Intoxication
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Intoxication Assault
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Intoxication Manslaughter
Penalties for DWI Charges in Texas
DWI 1st Offense (Class B Misdemeanor)
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Confinement in county jail for a minimum of 6 days and maximum of 180 days and/or a fine of up to $2,000
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Drivers license suspension of 90 days for anyone who takes a time-served plea, as opposed to a probation
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Additional Conditions – depending on the facts of your case (accident, prior record, alcohol problem, etc.), the court may order additional conditions, such as an Ignition Interlock Device, Alcohol Treatment, random drug tests, pr restitution.
DWI 2nd Offense (Class A Misdemeanor)
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Ignition Interlock Device – required as a condition of bond in a DWI 2nd Offense, as well as a condition of probation after a guilty plea. The Ignition Interlock device requires a breath sample before starting your car and periodically while driving.
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Confinement in county jail for not less than 72 hours nor more than one year and/or a fine of up to $4,000
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Drivers license Suspension for not less than 180 days nor more than two (2) years, if convicted
Call experienced DWI Defense Attorney Michael Mercer to find out how to avoid getting your license suspended or to apply for an occupational license.
DWI 3rd Offense or Greater (3rd degree felony)
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Ignition Interlock Device – required as a condition of bond while your case is pending as well as a condition of any occupational or provisional licenses after conviction.
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Confinement in prison for between 2 to 10 years and/or a fine of up to $10,000
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Drivers license suspension of up to 2 years beginning after your release from confinement
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Other – mandatory rehabilitative treatment for alcohol/drugs
Intoxication Assault DWI (3rd degree felony)
A person commits intoxication assault DWI if by accident or mistake, while operating a motor vehicle in a public place while intoxicated, a person by reason of that intoxication causes serious bodily injury to another. ‘Serious bodily injury’ means injury that creates a substantial risk of death or protrated loss or impairment of the function of any bodily member or organ.
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Fine – not to exceed $10,000.
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Jail – confinement in prison for a term of not less than two (2) years nor more than (10) years.
Intoxication Manslaughter DWI (2nd degree felony)
A person commits intoxication manslaughter DWI if, while operating a motor vehicle in a public place, an intoxicated person, by reason of that intoxication, causes the death of another by accident or mistake.
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Fine – not to exceed $10,000
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Jail – confinement in prison for a term of not less than two (2) years nor more than twenty (20) years
Harris County DWI attorney Michael Mercer treats his clients like family and practices with passion and aggression. Let Mr. Mercer show you the best course of action to take. Contact us at (713) 208-7682 to talk to a Harris County DWI defense attorney for a free evaluation of your case.
Client Reviews
Defense Attorney Michael D. Mercer
Perfect 5 Star Google Rating
Mr Mercer is really good at what he does. I would recommend Mr Mercer to anyone that needs a good lawyer. he's on top of everything keeps you informed and works hard on your case. I'm extremely grateful for him working so diligently on my case. I appreciate how he took the time to look at all the paperwork that I had given him and to get to know a little bit about me. I'm definitely confident with giving him a five-star rating.
by R. C. 5/8/2024 on Google
"I hired Michael Mercer because of his 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
"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
DWI Attorney for Driver's License Suspensions
Depending on the facts of your DWI case, you will likely need to hire a DWI Attorney to contest the suspension of your Texas Drivers License. Texas law imposes an automatic suspension of your license if you refused to the taking of a breath specimen or if your blood alcohol content was over .08. Your DWI attorney can contest this suspension by requesting a hearing. The hearing must be requested within 15 days of your arrest, so don't waste time in hiring a top DWI lawyer to defend you.
Call 713-208-7682 for a free evaluation, or Request a Quote Online
Top Houston DWI Attorney available 24/7
License Suspension Periods in DWI Cases
Adults:
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Refused breath test– not less than 180 days.
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Provided breath test– not less than 90 days IF you blew over .08 BAC.
Minors:
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Refused test – not less than 180 days.
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Provided test – not less than 60 days IF any alcohol detected.
Contact a Houston DWI attorney at Mercer Law NOW to learn how to prevent your license from being suspended. Time is of the essence.
Hire an Experienced Harris County DWI Lawyer
The punishment in each DWI case will differ based on the facts and also on the DWI Defense Lawyer you hire. As a top DWI Defense Lawyer in Harris County, Michael Mercer focuses 100% of his practice on criminal defense. He is a Texas trial lawyer, through and through. He understands the pretrial and trial processes in DWI cases like few other attorneys in the area.
An experienced DWI Lawyer knows how to challenge the state in a DWI case, either through the selective pretrial intervention program, by setting the case for trial, by filing motions to suppress illegally obtained evidence or by winning based on problems with the breath and blood tests. Clients who hire defense attorney Michael D. Mercer have high expectations when it comes to defending their DWI's and negotiating for the best possible result in each case.

DWI Cost in Texas
The cost of a DWI in Texas can be extremely burdensome. There are attorneys' fees, bail bonds, court fees, DPS fees, probation fees, ignition interlock fees and more. Next to spending time in jail, the cost of a DWI on the person accused might be the most daunting aspect of a DWI charge. Depending on the DWI lawyer you hire and whether you get convicted, a DWI could cost you up to $30,000 when all is said and done.
Factors that Affect the Cost of a DWI
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Attorney fees: anywhere from $3,000 to $20,000. As with all other industries, you get what you pay for when it comes to a DWI Lawyer. Do your research on whomever you hire. Meet with the lawyer in person before retaining them.
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Bail bond fees: most misdemeanor DWIs will qualify for a PR bond, which costs you nothing. Felony DWIs may come with bonds between $5,000 and $30,000, depending on the facts of the case.
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DPS Superfine fees: should you get convicted of a DWI in Texas, DPS assesses fees between $3,000 and $6,000. Have your DWI lawyer request the judge to waive these fees during your plea.
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Probation fees: standard probation fees in Harris County, TX are around $70/month. This does not include any fine you agreed to pay as part of your probation. This also does not include the cost of installing and maintaining an interlock device in your vehicle should the judge require one
Can I Get a DWI Off of My Record in Texas?
Depending on the outcome of your DWI case, you may be eligible to get a DWI off of your record by filing for either a Non-Disclosure or an expunction. In Texas, expunction of DWI arrests are only available in the following situations:
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your DWI case resulted in a dismissal
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you received a Not Guilty verdict at trial and were acquitted
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you successfully completed a pretrial diversion program
Expunction of a DWI case results in the destruction of any and all records arising from the arrest, no matter who created them. This is different from a Petition for Non-Disclosure, which allows for certain state agencies to maintain records of the arrest, even after the case has been sealed.
In order to get a DWI off of your record by way of a Non-Disclosure, you must meet one of the following conditions:
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successful completion of a deferred adjudication
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a guilty plea resulting in conviction, as long as you have no other criminal history and your blood alcohol level was under .15 (thanks to the newly enacted Non-Disclosure laws in 2017)
