Dennis Sullivan’s experience spans a wide range of civil litigation matters, including commercial litigation, family matters, and personal injury. He also handles cases involving maritime, labor and employment, insurance, and construction matters. Dennis has litigated cases in all four federal districts of Texas, as well as federal and state courts in Texas, California, Indiana, Kentucky, Missouri, Florida, New Mexico, Louisiana, and Illinois. He has successfully represented clients before administrative offices, courts, and appeal boards, including numerous occasions before the United States Court of Appeals for the Fifth Circuit as well as state courts of appeal.
Dennis is a seasoned litigator and was selected as 2020 Litigator of the Year by the American Institute of Trial Lawyers. Dennis served as a briefing attorney to the Honorable Charles M. Bleil of the Sixth Court of Appeals from 1991-1992.
Dennis earned his J.D. from St. Mary's University School of Law in 1991. He earned his B.B.A. in Finance from St. Mary's University in 1988.
- Admitted, Texas, 1991
- Admitted, All Texas State Courts
- Admitted, United States District Court for the Northern District of Texas
- Admitted, United States District Court for the Eastern District of Texas
- Admitted, United States Bankruptcy Court for the Southern District of Texas
- Admitted, United States Court of Appeals for the Fifth Circuit
- Houston Aviation Advisory Council
- International Propeller Club Port of Houston
- Million Dollar Advocates Forum
- Multi-Million Dollar Advocates Forum
- State Bar of Texas
- Litigator of the Year, American Institute of Trial Lawyers, 2020
- Former Den Leader and Scoutmaster, Boy Scout Troop 1180
- Former Board Member, Houston Aviation Advisory Counsel
- Former President, International Propeller Club Port of Houston
- Charter Member, Knights of Columbus Council 12327