About the Practice

Brennan Law, LLC. is a practice focused on the defense of individuals and business entities in criminal and regulatory proceedings at the state and federal levels, both within and outside the state of Wisconsin.

Attorney Patrick C. Brennan is a 1988 graduate of Marquette University Law School. He is a past member of the Wisconsin State Bar Young Lawyer's Division Board of Directors and previously served as Co-Chairman of the Milwaukee Bar Association's Litigation Section. 


Attorney Brennan currently chairs the Milwaukee Bar Association's Criminal Law Section, and presently serves on the Wisconsin State Bar's Criminal Law Section Board of Directors. He is a member of the Wisconsin State Bar, the Milwaukee Bar Association, the Eastern District of Wisconsin Bar Association, the 7th Circuit Bar Association, and the National Association of Criminal Defense Attorneys.

Attorney Brennan has lectured on topics ranging from Federal Grand Jury practice to the defense of high profile criminal cases. Attorney Brennan has extensive state and federal court trial experience, and has argued cases before the 7th Circuit Court of Appeals, the 8th Circut Court of Appeals, and the Wisconsin Supreme Court. He is the founder and president of BRENNAN LAW, LLC., and currently practices out of the firm's offices in Milwaukee, Wisconsin.

Brennan Law, L.L.C. was founded on and continues to operate under the principle that effective legal representation requires character, courage, integrity and a commitment to excellence.

During his 28-year legal career, Attorney Brennan has also been admitted to practice in numerous other states, including New York, Pennsylvania, Illinois, Minnesota, North Dakota, South Dakota, Arizona and Nebraska.

Attorney Brennan is listed in the publication Best Lawyers in America in the area of Criminal Defense: Non-White Collar. He has consistently been voted as one of the top attorneys in Wisconsin in the area of criminal defense, as listed in Milwaukee Magazine's Top Attorneys in Wisconsin.