What departments does O'Brien Hatfield, PA have?

O'Brien Hatfield, PA has employees across 2 departments including Legal, Administrative.

What is the largest department at O'Brien Hatfield, PA?

The largest department at O'Brien Hatfield, PA is Legal with 6 employees.

Where are O'Brien Hatfield, PA employees located globally?

O'Brien Hatfield, PA has employees across 1 continents and 1 countries including United States Of America.

How has O'Brien Hatfield, PA's team size changed over time?

O'Brien Hatfield, PA's team has decreased from approximately 7 to 4 employees based on available data.

O'Brien Hatfield, PA Employee Directory

Law PracticeFlorida, United States2-10 Employees

O'Brien Hatfield, P.A. is a small Tampa-based criminal defense law firm that represents individuals and businesses facing federal and select state charges across Florida and beyond. The firm concentrates on complex matters, including federal and state white-collar crimes, drug trafficking, and fraud, handling both trial and post-conviction proceedings. It is led by Mark J. O'Brien, Esq., a former prosecutor in Miami, whose experience informs its approach to defense. Clients are drawn from across Florida and nationally who require aggressive, skilled defense against serious charges. The practice emphasizes both trial work and appellate and post-conviction motions to pursue comprehensive defense strategies.

O'Brien Hatfield, PA Global Highlights

North America
12

United States Of America
12

O'Brien Hatfield, PA's Leadership

M. K.
Partner
Mobile Phone
Email
J. H.
Vice President
Mobile Phone
Email
K. R.
Certified Paralegal
Mobile Phone
Email
S. J.
Criminal Defense Attorney
Mobile Phone
Email
R. B.
Legal Assistant
Mobile Phone
Email
M. O.
Attorney
Mobile Phone
Email
I. A.
Associate Attorney
Mobile Phone
Email
O. G.
Criminal Defense Attorney
Mobile Phone
Email

O'Brien Hatfield, PA Employee Metrics

100%

50%

0%

2026

2025

Legal
Accounting
Administrative
Analytics
Arts & Design
Other

Contact profiles from O'Brien Hatfield, PA

Name

Title

Contact Info

Location

Last Update

M. K.
Partner
Mobile Phone
Email
United StatesFlorida
Jun 29, 2026
J. H.
Vice President
Mobile Phone
Email
Oct 16, 2024
K. R.
Certified Paralegal
Mobile Phone
Email
May 31, 2026
S. J.
Criminal Defense Attorney
Mobile Phone
Email
United StatesFlorida
Jun 01, 2026
R. B.
Legal Assistant
Mobile Phone
Email
United StatesFlorida
Oct 26, 2025
M. O.
Attorney
Mobile Phone
Email
United StatesFlorida
Apr 13, 2026
I. A.
Associate Attorney
Mobile Phone
Email
United StatesFlorida
Jun 28, 2026
O. G.
Criminal Defense Attorney
Mobile Phone
Email
Oct 22, 2024
R. B.
Attorney At O'brien Hatfield, Pa
Mobile Phone
Email
Jun 13, 2025
R. R.
Attorney
Mobile Phone
Email
United StatesFlorida
Jun 13, 2025

Frequently Asked Questions

What is O'Brien Hatfield, PA known for?

O'Brien Hatfield, PA was founded in 2002 operates in the Law Practice industry. The company's main headquarters is located in 511 West Bay Street Suite 330 Tampa, Florida 33606 United States; you can contact the main corporate office by phone at

+1-813-390-****

. Explore O'Brien Hatfield, PA's company overview page for more information.

What is O'Brien Hatfield, PA's most common email format?

O'Brien Hatfield, PA employees' email format typically follows the pattern of . Trying to find reliable and up-to-date employee contact data? Find more O'Brien Hatfield, PA email formats with LeadIQ.

How many employees does O'Brien Hatfield, PA have currently?

O'Brien Hatfield, PA has approximately 7 employees as of June 2026. These team members are located across 1 continents, including North America.

Who are O'Brien Hatfield, PA's key employees and leadership?

As of June 2026, O'Brien Hatfield, PA's key employees include:

Partner: M. K.
Vice President: J. H.
Certified Paralegal: K. R.
Criminal Defense Attorney: S. J.
Legal Assistant: R. B.

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O'Brien Hatfield, PA Employee Directory

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