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One of Oklahoma’s premier criminal defense trial attorneys. Corey's professionalism reflects his passion for criminal law and courtroom advocacy. Mr. Brennan’s diligent preparation and experience dealing with prosecutors and judges from all over the state of Oklahoma enable him to effectively defend his clients’ Constitutional rights in both negotiation and courtroom litigation.
Mr. Brennan started his legal career at the Oklahoma City University (OCU) School of Law, where he established himself as a hard-working and dedicated student. His desire to become a trial attorney and his willingness to sacrifice earned him a Limited License to practice law while still attending school as a full-time student.
While in law school, he was selected as a National Member of the Order of Barristers for his excellence in trial practice, and he was awarded the Cali Award for earning top honors in the study of Trial Practice. In addition, Mr. Brennan competed in the American College of Trial Lawyers (ACTL) National Trial competition and was a member of the OCU Law Moot Court Society.
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Chat withState: Oklahoma
Acquired: 2015
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625 NW 13th St. Ste A, Oklahoma City, OK, 73103
38 Client Reviews
Showing 1 - 5 of 8 reviews | Communication Style
Posted by Miller | July 17, 2025 | Hired Attorney | Criminal Defense
OUTSTANDING ATTORNEY
A fearless fighter that has your back 1000%. Hiring Corey Brennan as a defense attorney ws the best decision I've ever made. He is the BEST attorney in the state. You want an attorney who is confident, thorough, and unshakably composed. He didn't just know the law -he knew how to communicate it cle...
Posted by Wade | March 06, 2025 | Hired Attorney | Criminal Defense
Great attourney
I cannot express enough how grateful I am for the exceptional legal representation provided by Mr. Brennan. From our initial consultation, it was clear that I was in the hands of a true expert in criminal defense. He demonstrated an impressive understanding of the law and took the time to thoroughly ...
Posted by anonymous | September 25, 2020 | Hired Attorney | Criminal Defense
OKC’s best lawyer
My experience with Mr. Brennan representing me was nothing below excellent. I had never been in trouble before and I was very scared, nervous, and honestly just confused about the whole situation at first. Once I got Mr. Brennan involved it was like a weight being taken off of my chest! He handled ev...
Posted by Sean | January 22, 2018 | Hired Attorney | Criminal Defense
Criminal Defense Attorney
I called Mr. Brennan in August of 2016 looking for an attorney for what I thought was going to be a situation that was surely going to affect the rest of my life. Mr. Brennan right from the start was re-assuring and as well I felt like he cared about genuinely helping me and not just trying to collec...
Posted by Terrence | September 17, 2017 | Hired Attorney | Criminal Defense
The attorney you need in your corner!
I had gotten into some trouble and I called Corey Brennan and he was very professional & straightforward. He told me all my options and what I needed to do. If I ever had questions or needed to speak with him, he was always available or would contact me right away. Mr. Brennan got my case dismissed a...
"Corey is a tough attorney who will vigorously fight for his clients. I have worked with him on multiple occasions, and there are few attorneys that have Corey's passion and work ethic."
Criminal defense lawyer
2015
JD - Juris Doctor
English