About Attorney Corey Brennan
Corey Brennan is a trial attorney from Oklahoma City, Oklahoma, and has proven himself to be one of the state’s most formidable criminal defense trial attorneys. Known for his skill in the courtroom, his strategic approach to complex criminal cases, and his relentless advocacy for his clients, Mr. Brennan has built a strong reputation across Oklahoma as an attorney who fights to win.
Mr. Brennan focuses his practice exclusively on criminal defense, representing clients in misdemeanor and felony cases throughout Oklahoma. Whether defending someone against a DUI, drug offense, or serious violent felony, he is committed to protecting his clients’ rights, freedom, and future.
Education and Background
Corey earned his Juris Doctor from the Oklahoma City University School of Law, where he distinguished himself as one of the top trial advocates in his class. During law school, he was:
- Selected as a National Member of the Order of Barristers for excellence in trial advocacy
- Awarded the CALI Award for earning top honors in Trial Practice
- A competitor in the American College of Trial Lawyers (ACTL) National Trial Competition
- A member of the OCU Law Moot Court Society
- One of a limited number of students to receive a limited license to practice law while still in law school
- National Trial Lawyers member
After graduating, Mr. Brennan passed the Oklahoma Bar Exam on his first attempt. Since that time, he has successfully represented individuals in a wide range of criminal matters, including major felony jury trials. His combination of academic excellence, courtroom experience, and deep knowledge of Oklahoma law has made him a trusted advocate for clients across the state.
Corey Brennan wrote the book on Oklahoma Level 3 sex crimes. The book examines Oklahoma’s most serious sex-offender registration category and the laws and consequences associated with Level 3 offenses.
View the Book on AmazonCorey Brennan in the News
Criminal Defense Experience
Corey has defended clients against an extensive range of charges, including but not limited to:
- Drug crimes – Proceeds, Possession CDS, Trafficking, Intent to Distribute
- Assault & Battery – Aggravated, Domestic, Strangulation
- Burglary
- Sex Crimes – Child Sexual Abuse, Lewd Acts, Child Porn, Rape, Prostitution
- Firearms Offenses
- Driving Under the Influence (DUI) / DWI / APC
- Kidnapping
- Larceny/Theft Offenses – Larceny, Knowingly Concealing Stolen Property
- Homicide – Manslaughter, Murder
- Computer Crimes
- Victim Protective Orders (VPOs)
Trial Philosophy and Approach
Mr. Brennan believes that preparation and persistence win cases. He approaches each case as if it will go to trial, carefully examining every piece of evidence, identifying constitutional violations, and challenging illegal searches and arrests.
Whether he is arguing motions to suppress unlawfully obtained evidence, cross-examining witnesses, or persuading a jury to acquit his client, Mr. Brennan’s commitment to excellence and justice never wavers. His clients benefit from his unwavering focus, trial skill, and passion for protecting their rights.
Since beginning his practice, Mr. Brennan has consistently proven himself as one of Oklahoma’s most aggressive and effective criminal defense attorneys. His dedication to his craft and desire to win have earned his clients exceptional results and the respect of judges, peers, and opposing counsel alike.
Client Commitment
Corey treats every client with respect and honesty. He provides straightforward legal guidance, keeps clients informed at every stage, and fights tirelessly to achieve the best possible outcome in every case—no matter how serious the charge.
When you hire Corey Brennan, you gain more than an attorney—you gain a relentless advocate who will stand beside you every step of the way.
Contact Corey Brennan
If you or a loved one is facing criminal charges in Oklahoma, contact Attorney Corey Brennan today at 405-633-3420 to schedule a confidential consultation.
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