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Mastantuno Law Firm, LLCMastantuno Law Firm, LLC
Mastantuno Law Firm, LLCMastantuno Law Firm, LLC
Mastantuno Law Firm, LLC
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Office Location

Mastantuno Law Firm, LLC
171 Church Street, Suite 160
Charleston, SC 29401
PH: 843.720.3741
FX: 843.577.0460
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Mastantuno Law Firm, LLC - Our Areas of Practice

The legal system is incredibly complex; even a seasoned lawyer may only feel comfortable in one particular area of law. At Mastantuno Law Firm, we pride ourselves on meeting your needs with efficient, competent service in the following areas of law:


Criminal Defense Attorney

As a former prosecutor for the 9th Circuit Solicitor’s Office, Allen Mastantuno has the skill, experience and knowledge to aggressively defend you or a loved one no matter what the charge.

Minor charges can lead to major consequences

A conviction or bond forfeiture for simple possession of marijuana creates a criminal record and can lead to loss of employment and future job opportunities, educational opportunities, military opportunities, and beyond.

A simple criminal domestic violence conviction is a serious criminal offense in South Carolina and, under current federal law, would destroy the right of the accused person to own or possess a firearm.

A conviction for a minor's possession of alcohol or a false I.D. results in an automatic driver's license suspension.

We strongly encourage anyone that has received a traffic citation or warrant to seek a free consultation with us before giving up valuable constitutional rights.

Being arrested for any crime can lead to very serious consequences. Just because you were arrested, doesn’t mean you are guilty. You still have rights. Our Charleston criminal defense lawyer’s combination of knowledge and experience will provide you with an aggressive, effective criminal defense in any court.  Furthermore, our familiarity with prosecutorial techniques and knowledge of criminal law, ensures that you will receive a vigorous, well-planned criminal defense.

DUI Lawyer

In South Carolina, driving under the influence, commonly known as DUI, can lead to significant,  life altering consequences beyond a mere fine.  Consequences may include but are not limited to: loss or impairment of one's driver's license, vehicle confiscation, loss of job and employment opportunities, jail time, drastically increased insurance rates and mandatory enrollment and completion of an alcohol and drug safety course, commonly known as ADSAP.

If you have been charged with DUI in South Carolina, you have a lot at stake. It is extremely important that you hire a Charleston, SC DUI lawyer who is highly familiar with the system, the prosecutors, the police and the judges. J. Allen Mastantuno, is that lawyer.  As the former lead DUI prosecutor in Berkeley County, J. Allen Mastantuno has the skill, knowledge and experience to defend you and protect your rights. His extensive knowledge and experience was gained while prosecuting over a hundred DUI cases in Berkeley County ranging from DUI 1st offense to Felony DUI Involving Death. If you have been charged with a DUI in Charleston or anywhere in South Carolina, please get in touch today to find out how we can help.

Contact Us

Whether you are facing serious criminal charges or suffered a serious injury Mastantuno Law Firm has the experience to protect your rights. Whether your case is simple or complex, our experienced staff is here to help you.

To set up an initial consultation about your individual case, call us at 843.720.3741.


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