Federal Criminal Defense Attorney Mark J. O’Brien
NOTE: MR. O’BRIEN ONLY REPRESENTS INDIVIDUALS AND COMPANIES ACCUSED OF CRIMES. HE DOES NOT REPRESENT VICTIMS OF CRIME OR HANDLE CIVIL CASES. IF YOU BELIEVE YOU ARE A VICTIM OF A CRIME OR NEED ASSISTANCE IN A CIVIL CASE, PLEASE CALL YOUR LOCAL BAR ASSOCIATION FOR AN ATTORNEY REFERRAL PROGRAM. PLEASE DO NOT CONTACT MR. O’BRIEN IF YOU BELIEVE YOU ARE A VICTIM OF A CRIME OR NEED HELP IN A CIVIL CASE. HE REGRETS HE WILL NOT BE ABLE TO ACCEPT YOUR CASE. MR. O’BRIEN ONLY HANDLES CRIMINAL MATTERS.
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FEDERAL CRIMINAL DEFENSE ATTORNEY MARK J. O’BRIEN
Mark J. O’Brien, Esquire is a nationally recognized Federal Criminal Defense Attorney with nearly 25 years’ experience in courts all throughout the country. After beginning his professional career as a Miami, Florida prosecutor in the late 1990’s, Mr. O’Brien organized his own law firm in 2002 based upon the lessons he learned to that point in his professional life with the goal defending those accused of federal crimes throughout the state and country with a mix of old school values and new school ideas.
For his first decade in private practice from 2002 until 2012, Mr. O’Brien added to his early 1990’s prosecutorial foundation with ever growing experience defending individuals and companies charged with federal crimes throughout federal criminal courts in our state. Over a decade ago, Mr. O’Brien began accepting federal criminal cases in federal criminal courts throughout the country. Case after case, success after success, resulted in a growing legacy.
To put it simply, Mr. O’Brien wins and, as a result, he is in demand.
Mr. O’Brien was born in New York, attended law school near Philadelphia, Pennsylvania, and started his career in Miami, Florida. There is nothing he has not seen, done, or dealt with in and/or out of a federal criminal courtroom. New York raised, Philly tough, and Miami savvy, Mr. O’Brien brings his nearly 25 years of federal criminal court experience to those accused of federal crimes in federal criminal courts in state and throughout the nation. Mr. O’Brien has the resources, both in his people and his intelligence, to tackle your federal criminal case and accomplish the objective. Win.
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A FEDERAL CRIMINAL DEFENSE ATTORNEY WITH A FEDERAL CRIMINAL DEFENSE TEAM
In addition to his experience and training, Mr. O’Brien has built a full Federal Criminal Defense Team to assist him in defending his federal criminal cases. Mr. O’Brien believes in his excellence, experience, and training. However, he also believes in hiring the best people to help him do his job. It is important however to build a team that understands the other side of what they will be doing for Mr. O’Brien.
As a result, Mr. O’Brien supplements his experience and training with others who have very specific sets of skills. This includes a former Drug Enforcement Agency (DEA) Federal Special Agent, a former Internal Revenue Service (IRS) Criminal Investigation Division Federal Special Agent, a former United States Probation Officer, and a former law enforcement detective.
Together, the above four individuals have over 100 plus (approximately 25 years each) combined years of federal criminal court experience on both the prosecution side and the defense side in federal criminal courts throughout the country.
Once those individuals are added to Mr. O’Brien’s nearly 25 years of prosecutorial and federal criminal defense experience, Mr. O’Brien’s team has a combined 125 years of federal criminal court experience to help you through your precarious position in life. It takes a team to do something right. And Mr. O’Brien has the right team.
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ONE OF THE BEST FEDERAL CRIMINAL DEFENSE ATTORNEYS IN THE NATION
Many lawyers advertise on their websites the various awards they have “won” proclaiming them to be a ‘Top Lawyer’, a ‘Top 100 Attorney’ or a ‘10.0 Rating’, and so forth. Please note that any attorney who advertises such “awards” has to pay money to the particular website to be granted such “honors”. Mr. O’Brien refuses to pay for an award or honor. He relies on his experience and training and his team to win time and time again.
However, in case you are interested in unbiased, non-paid for accolades, here are examples of what federal judges across the country are saying about Mr. O’Brien during real cases in open court:
Federal District Court Judge William Jung: “You have actually, in my humble opinion, probably hired the best lawyer right now in the State of Florida.”
Federal Magistrate Judge Thomas G. Wilson: “Mr. O’Brien is a very excellent, skilled, experienced lawyer. If you want to go to trial, he’ll go to trial, and guess what, he’s a very competitive lawyer, he wants to win. I can’t think of anybody who do a better job . . .than Mr. O’Brien.
Federal District Court Judge John Antoon, II: “And you’ve had outstanding counsel here. You found Mr. O’Brien on your own, which worked to your advantage because not every attorney would have spotted the issues that he spotted and communicated to the Court the way he did. But the likelihood of that ever happening again is miniscule.”
Federal District Court Judge James I. Cohn: “Your lawyer did a hell of a job for you. There are not a lot of lawyers that handle sentencing issues as well as your lawyer did in this case. So you owe him a debt of gratitude. He saved you a lot of time.”
Federal Magistrate Judge James R. Klindt: “Mr. O’Brien is not afraid to say what he thinks and believes. He is not going to pull any punches in terms of speaking up and representing his client in a vigorous and zealous way.”
Federal District Court Judge Lisa Godbey Wood: “Mr. O’Brien, Mr. Jackson, come forward. Mr. Jackson, the jury has found that you are not guilty on both charges which you were indicted on. As a result, I now adjudge you no guilty of the offenses and you will be free to leave from these charges. Your attorney did an excellent job in the case and the jury’s verdict will become the record of The Court.”
Federal District Court Judge William Jung: “And I’m not an advertising company for Mr. O’Brien’s law firm, but in my humble opinion you got a million dollars’ worth of legal talent in this case.”
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TESTIMONIAL FROM AN ACTUAL CLIENT ACQUITTED AT A FEDERAL CRIMINAL TRIAL
“By the grace of God my family found Mr. Mark J. O’ Brien when I was facing a minimum 10 years to life in federal prison for a 16 person drug conspiracy stretching from Georgia to Florida. My bond hearing was 48 hours after my arrest and Mark arrived at the bond hearing fully prepared in such a short time and I was released from jail. He even visited me at the jail in the 48 hours I spent in custody. He was on it from the start.
I was then indicted one month before my destination wedding in Jamaica. Upon my release from jail, Mark immediately began working on a motion so that I could travel to my destination wedding that was already paid for and that all of our friends and family had already booked their travel to attend. The motion was approved even though no one thought it would be and Mark ordered his private investigator to travel with us to protect us. Mark’s private investigator was wonderful and became a part of the family of course.
Fast forward to coming back home and back to the terrible reality of dying in federal prison because of this federal indictment. Mark’s assistant Jeanette was absolutely wonderful and was available whenever we had questions and wanted to schedule meetings with Mark. It was genuine heartfelt customer service that we received from Jeanette at all times. She understood that this was the hardest time of our lives and was willing to help at any time of day or night. Mark, Jeanette, and his paralegal Chelsea and his entire office were always responsive via phone and email. Mark responded back to emails in well less than 24 hours which is commendable considering he’s such a high profile lawyer.
I met with Mark for trial preparation multiple times, and eventually we made our way out of state to Georgia for the federal criminal jury trial.
We arrived at the courthouse for jury selection and Mark was ever so attentive. It was obvious that Mark had done his homework, had my best interests at heart, and wasn’t intimidated to be going up against the Unites States government.
It was apparent that Mark and my entire family were judged and treated differently in a different state where people had already classed me as guilty. As the trial began, Mark took notes and never missed a beat. Mark’s strategy and execution and style were impeccable. The cross-examination captured every detail and definitely sparked the jury’s interests because it was so captivating. Mark’s closing statement gave my entire family goosebumps. It was like a movie.
Mark debriefed my family each day during lunch break, at the end of every day of trial, and also after the jury was released to deliberate. When I say this is the lawyer that you need, I mean it deeply. And after the jury started deliberating, Mark kept it extremely professional answering our questions while still personally checking up on my family and reassuring us all that everything was going to work out.
In addition to Mark, Mark’s entire law office reached out to my wife during the trial with their support and let us know that they were praying for us. During the most difficult time ever faced in all of my life, it felt comforting to have these folks in my corner. You are not just hiring a lawyer. You are hiring a team who personally and professionally cares about you. After the federal judge read the jury instructions and we were in recess, I sat outside of the courtroom with my head down and knees shaking. I know Mark saw it, but he never made me feel bad or ashamed to be scared.
To say that my family and I were petrified about the future being in the hands of 12 complete strangers from a different state is an understatement. Mark sat across from me, looked me in the eye, and told me while he would not lie and tell me he knows what I was feeling, but he said he empathized with me. He even said that he was nervous too and the day he stopped being nervous is the day he stops defending people because that is the day that he knows he does not care anymore. As we continued to wait and it felt like forever, Mark repeatedly walked by and gave me a reassuring pat on my shoulder or a tap on my head. He truly cares.
One funny story: after one of the breaks, one of the US Marshall court officers asked Mark which city he was based in in Florida and was telling him about his son’s needs. Mark was so good that he was already being recruited even before the Not Guilty Verdicts by courtroom security officials!
We were called back in the courtroom twice with jury questions. The questions showed that my jury was closely considering Mark’s arguments and that there was doubt about if the government proved its case.
After one hour and fifteen minutes, the jury came back with NOT GUILTY VERDICTS on all counts! Mark thanked the judge, and even shook hands with the government, and we as a family all walked out of that courtroom together shaking with joy but with our heads held high! After the jury was released even the judge complimented Mark on the wonderful job that he did! The way that Mark conducted himself in the courtroom was undeniably the closest you can ever get to perfection.
Mark is extremely professional and personable with people. The jurors liked him. The court staff liked him. Even the prosecutors and agents seemed to like and respect him because he was always professional when battling them. More importantly, Mark was excited for me and my family and the passion that he has for his job as a trial lawyer is what you really and truly need in a lawyer.
There is absolutely nothing that I can do that would be enough to thank Mark for literally saving my life. As we walked outside of the courthouse, my father in law was so happy that he told Mark, “I have to change your name in my cell phone to JC or Jesus Christ, because you just saved a life, in fact, you just saved the lives of an entire family!”
My family and I are so impressed with Mark’s professionalism, demeanor, and energy from that first scary day we met in a federal courthouse in Orlando, Florida to the amazing last day we hugged him goodbye standing outside a federal courthouse in Brunswick, Georgia. Thank you Mark for giving me back my life and making it possible for me to have a future!!!”
– Andrew Jackson, United States of America v. Andrew Jackson, 2:18-CR-14-LGW-BWC, Southern District of Georgia, Brunswick Division
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AREAS OF PRACTICE
Federal White Collar Criminal Defense
- Tax Fraud
- Mail Fraud
- Wire Fraud
- Bank Fraud
- Mortgage Fraud
- Securities Fraud
- Medicare Fraud
- Health Care Fraud
- Bribery
- IRS Issues
- Identity Theft
- Embezzlement
- Insider Trading
- Ponzi Schemes
- Money Laundering
- Sarbanes Oxley
- Conspiracy to Commit a Federal White Collar Crime
- All Other Federal White Collar Crimes
Federal Sex Crimes Defense
- Drug Offenses and Trafficking
- Child Pornography Possession Offenses
- Child Pornography Production Offenses
- Child Pornography Transportation Offenses
- Child Pornography Distribution Offenses
- Child Pornography Receipt
- Sex Trafficking Offenses
- Conspiracy to Commit a Federal Sex Crime
- All Other Federal Sex Crime Offenses
Federal Criminal Defense
- Gun Offenses
- Crimes of Violence
- Conspiracy to Commit a Federal Crime
- All Other Federal Crimes
Federal Grand Jury Investigations
- Target of a Federal Grand Jury Investigation
- Subject of a Federal Grand Jury Investigation
- Witness of a Federal Grand Jury Investigation
- All Other Grand Jury and FBI, HSI, DEA, ATF, CIA, and NSI Investigations
FOR A FREE CONSULTATION CALL OR TEXT NOW:
24/7/365
FEDERAL CRIMINAL DEFENSE ATTORNEY MARK J. O’BRIEN HAS NATIONWIDE FEDERAL CRIMINAL COURT EXPERIENCE
Mr. O’Brien has been a member of the Bar of the State of Florida and the Bar of the Commonwealth of Massachusetts since 1998. In addition, he is a member of the Supreme Court of the United States, the Supreme Court of the State of Florida, the Massachusetts Supreme Judicial Court, and has appeared as a member or a pro hac vice member before the following federal courts:
- United States Court of Appeals for the First Circuit
• United States Court of Appeals for the Second Circuit
• United States Court of Appeals for the Eleventh Circuit
• United States District Court for the Northern District of Alabama
• United States District Court for the Eastern District of Arkansas
United States District Court for Arizona
• United States District Court for the Central District of California
• United States District Court for the Southern District of Florida
• United States District Court for the Middle District of Florida
• United States District Court for the Northern District of Florida
• United States District Court for the Southern District of Georgia
• United States District Court for the Northern District of Georgia
• United States District Court for the Southern District of Illinois
• United States District Court for the Eastern District of Kentucky
• United States District Court for Massachusetts
• United States District Court for the Southern District of Mississippi
• United States District Court for the Western District of Missouri
• United States District Court for the Southern District of New York
• United States District Court for North Dakota
• United States District Court for Rhode Island
• United States District Court for the Eastern District of Texas
• United States District Court for the Western District of Texas
• United States District Court for the Northern District of Texas
• United States District Court for the Eastern District of Washington
• United States District Court for the Western District of Washington
• United States District Court for the Southern District of West Virginia
If you are being investigated and need of a Federal Criminal Defense Attorney – and a Federal Criminal Defense Team – anywhere in the United States of America, all Mr. O’Brien needs is a Wi-Fi Password and a plane to defend you.
NOTE: MR. O’BRIEN ONLY REPRESENTS INDIVIDUALS AND COMPANIES ACCUSED OF CRIMES. HE DOES NOT REPRESENT VICTIMS OF CRIME OR HANDLE CIVIL CASES. IF YOU BELIEVE YOU ARE A VICTIM OF A CRIME OR NEED ASSISTANCE IN A CIVIL CASE, PLEASE CALL YOUR LOCAL BAR ASSOCIATION FOR AN ATTORNEY REFERRAL PROGRAM. PLEASE DO NOT CONTACT MR. O’BRIEN IF YOU BELIEVE YOU ARE A VICTIM OF A CRIME OR NEED HELP IN A CIVIL CASE. HE REGRETS HE WILL NOT BE ABLE TO ACCEPT YOUR CASE. MR. O’BRIEN ONLY HANDLES CRIMINAL MATTERS.