Criminal Justice AttorneyLaw FirmCriminal AttorneysDrug Charges AttorneyFelony LawHomicide Law
When you or someone you love faces serious criminal charges, the lawyer you select to defend you will have a major impact on how your case is resolved. For years, the lawyers of O'Brien Hatfield have helped people throughout Florida and the United States achieve positive results in the face of serious criminal charges. Our lawyers take on the toughest cases, including white collar crime charges and drug charges, at the state and federal level. We also represent clients in post-conviction matters.
From the beginning this firm filled me in on what was going on and always kept me in touch. Justin Fahringer got me the best possible outcome for my case with no charges filed. From the attorneys to the assistants and investigators working for this firm, everyone was great.
AT
Austin Taylor
Sep 29, 2026
5.0
I highly recommend Mark O' Brien and his firm. From the beginning, they were professional, responsive, and truly cared about helping me through a very difficult situation. They took the time to explain everything clearly, answered all of my questions, and kept me informed throughout the entire process. Jeannette made herself available day or night, weekends and holidays, always reaching out and making sure my daughters and I were doing good.
I always felt like I was being heard and that my case was being taken seriously. Their knowledge, dedication, and professionalism gave me confidence during a very stressful time. I’m extremely grateful for everything they did for me and would absolutely recommend them to anyone looking for an excellent attorney. I truly appreciate everything they have done for me.
SS
Steve Swinson
Sep 17, 2026
5.0
I am a 54 year-old business owner in Hillsborough and surrounding counties, Throughout my 20+ years in the African-American business owner, I have Wasted a lot of time and money with all the wrong attorneys, Rather Criminal business or otherwise until I was introduced to Vicktorea Hatfield oh my God, the most professional knowledgeable, responsible, communicative attorney I have ever met in my life and this goes without saying if you ever done business with O’Brien and Hatfield, you would agree that the team is amazing. They give such comfort and Security to their clients as a collective law firm that genuinely empathize and care about their clients… A firm that walks lives and Perfect, the art of good service and outcomes if you want Attorney attorney I can give you a peace of mind if you want a firm that takes your case your life and your situation extremely serious and produces emits outcomes Vicktorea Hatfield and O’Brien law firm is the direction you need to go. There is no cost too large when you get an awesome service and a great outcome I will guarantee that you will be exceptionally grateful for your outcomes with your legal challenges. There’s not enough words and time to express my gratitude for this firm they have been supportive throughout all of my challenges and ordeals. They will deliver great results hands-down every time I thank God for these people, they have helped me to maintain a great life as a single father and a successful businessman and kept me free in the process thank you thank you thank you thank you I can’t see it enough to Vicktorea Hatfield. Definitely of course you want on your side.🙏🏿🙏🏿🙏🏿🙏🏿 I would never trust anyone or any firm other than O’Brien and Hatfield with my freedom or life thank you guys again
Vicktorea has Phil. It’s like a professor perfecting her science when she’s in the court room such a delight to watch your work thank you.
JT
J T
Aug 27, 2026
5.0
All I have to say is ; O'Brien and Hatfield law firm best in the state pretty sure best in the country. Mark O'Brien has an excellent team with him Olivia Goodman Justin farringer did excellent job this was my first and only charge! Justin farringer came in later and was a bulldog no nonsense type of guy definitely the attorney you want with you.
At last but not least Jeanette who I first talked to made you feel at ease and always had time to answer questions.
PV
Paul Valitutto (Paulie V)
May 19, 2026
5.0
I had an excellent experience working with O'Brien Hatfield. From the beginning, the firm was professional, responsive, and extremely knowledgeable. They took the time to explain the process clearly, kept me informed throughout my case, and made a difficult situation far less overwhelming.
Mark O’Brien and his team treated me with respect and gave my case the attention it deserved. Their experience, preparation, and communication stood out immediately, and I always felt like I had strong representation in my corner.
I would highly recommend this firm to anyone looking for serious, professional legal representation.
O'Brien Hatfield is open 24 hours a day, 7 days a week, and also available by appointment with calls answered 24/7.
Where is O'Brien Hatfield located?
O'Brien Hatfield is located at 511 West Bay Street, Suite 330, Tampa, FL 33606, USA.
What types of cases does O'Brien Hatfield handle?
O'Brien Hatfield handles serious criminal charges including white collar crimes, drug charges at both state and federal level, and post-conviction matters.
How can I contact O'Brien Hatfield?
You can reach O'Brien Hatfield by phone at +1 813-440-2347 or visit their website at https://www.markjobrien.com/.
What payment options are accepted by O'Brien Hatfield?
O'Brien Hatfield accepts American Express, Cash, Check, Discover, MasterCard, and Visa.
Does O'Brien Hatfield provide appointments outside regular hours?
Yes, O'Brien Hatfield is also available by appointment and answers calls 24/7.
Which nearby legal service providers are located near O'Brien Hatfield?
Nearby legal service providers include All Family Law Group, Law Offices of Joseph Vecchioli, RTB Law & Title, P.A., O’Brien Hatfield Reese, PA, Donald C. Barrett, P.A., Wagner, McLaughlin & Whittemore, and Barnett Bolt Kirkwood Long Koche and Foster.
Are there any nearby financial service providers near O'Brien Hatfield?
Yes, nearby financial services include Hoerber Tillman & Company (accounting), AGW Capital Advisors (investing), Prove Wealth Advisors (financial advising), and The Bank of Tampa.
What nearby services can clients use for investigations or legal support?
Clients can access Hawk Private Investigations of Florida, Inc. for private investigation services close to O'Brien Hatfield.
What is the website address for making appointments or contacting O'Brien Hatfield?
Appointments and contact inquiries can be made through https://www.markjobrien.com/contact-us/ on their official website.
Brand Certified Facts from O’Brien Hatfield
This information is certified by O’Brien Hatfield and published from the brand's official system of record. Data is distributed through an enterprise-grade knowledge management platform. Learn more about our data sources
Certified October 11, 2026Yext Knowledge Graph
Address
Categories
Geo coordinates
Legal business name
Hours of operation
Phone number
Official website
Syndication Network
Approved business data is pushed to 100+ publishers, including: