Maureen O'Connor Sullivan


  • location icon Lafayette, LA
    100 East Vermilion Street
    Suite 300
    Lafayette, LA 70501
  • location icon New Orleans, LA
    400 Poydras Street
    Suite 1300
    New Orleans, LA 70130

Maureen O'Connor Sullivan is the administrative partner of the Lafayette and New Orleans offices of Lewis Brisbois and a member of the Bad Faith Litigation Practice. She has over 30 years of experience in complex civil litigation and business law. 

She maintains a varied trial practice and client-base and handles first and third party insurance coverage matters and extra contractual claims against insurers; maritime personal injury and property damage, including Jones Act claims; maritime and offshore energy coverage and indemnity disputes; construction claims and litigation; product liability including mass tort claims; professional liability including architects, engineers, attorneys and corporate management; environmental liability including personal injury and property damage and coverage therefor; and high exposure commercial transportation litigation.

Related Newsletters

Legal Experience

  • Large New Orleans-based regional law firm, Managing Partner, Dallas office
  • Outside General Counsel - Trinity Industries, Inc. - (NYSE: TRN)
  • General Counsel - Trinity Marine Group, Inc. - (NYSE:FGH)
  • General Counsel - Halter Marine Group. Inc. - (AMEX:HLX)
  • General Counsel - Energy Partners, Ltd. - (NYSE:EPL)
  • Lewis Brisbois Bisgaard & Smith LLP, Managing Partner, Louisiana offices
  • Private placement of secondary capitalization
  • Created corporate structure and documentation
  • Negotiated operations contracts, including drilling, service and procurement Identified insurance needs for company and project-specific risks
  • Identified insurance needs for company and project-specific risks


  • Author, “Recent Developments in Louisiana Civil Procedure,” Louisiana State Bar Association, Annual Review of Recent Developments in the Law (1984-1991)
  • Faculty, AICPA Conference for the Construction Industry, “Insurance Issues for the Construction Industry.”


Louisiana - All State and Federal Trial Courts

United States Supreme Court

United States Court of Appeals for the Fifth Circuit

Federal District Courts in Texas, Illinois, New York and District of Columbia


  • Louisiana State Bar Association
  • Lafayette Bar Association
  • American Corporate Counsel Association
  • Dallas Bar Association (to 1997)
  • American Inns of Court of Acadiana – Team Leader

Awards & Honors

A-V rated by Martindale-Hubbell (highest rating)


Tulane University School of Law

Juris Doctor, cum laude, 1979

Loyola University

Bachelor of Arts, 1972

arrow Back to Attorneys