Andrew T. Sullivan

Thomas Louis Colletta, Jr. he concentrates his practice on varied areas of casualty litigation in New Orleans and Lake Charles. Mr. Colletta worked as an executive assistant to United States Congressman Jimmy Hayes of Louisiana’s seventh congressional district during and after college. Following law school at Tulane School of Law, Mr. Colletta served as a law clerk for the Honorable Gene Thibodeaux, Chief Judge of the Louisiana Third Circuit Court of Appeal. Upon completion of his clerk...

Jaye Calhoun draws on decades of experience and a thorough understanding of federal, state, and local taxation to represent and counsel clients facing tax compliance, litigation, and controversy matters. She is Board Certified by the Louisiana Board of Legal Specialization in Tax Law and Estate Planning and was profiled as “The Problem Solver” in a 2012 article in Louisiana Super Lawyers . Her practice focuses on Litigation and Controversy – Tax and Tax Law, with an emphasis...

Fishman Haygood partner Paul Thibodeaux has thrived in some of the most complex commercial litigations in the country for more than 20 years. With a background in civil engineering, Paul is a trial lawyer whose practice focuses on environmental and construction litigation for both plaintiffs and defendants. He routinely represents business interests, as well as individuals and landowners. Over the course of his career, Paul has successfully taken a lead role in many high-profile matters, incl...

Mark Mallery is the Managing Shareholder of the firm’s office in New Orleans, where he has practiced labor and employment law for over twenty-five years. A problem-solver for employers, Mark has acted as lead counsel on complex disputes, including Sarbanes-Oxley whistleblower claims before the Office of Administrative Law Judges; pattern and practice and class based claims prosecuted by the EEOC; collective actions under the Fair Labor Standards Act; and class-based discrimination claim...

Katherine Clark is a top attorney recognized by Best Lawyers in the practice area(s) of Bankruptcy and Creditor Debtor Rights / Insolvency and Reorganization Law and Litigation - Bankruptcy. Katherine, who practices law in New Orleans, Louisiana, has been recognized since 2026. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Katherine is held by other top lawyers in the same geographic and legal practice area.

Aimee Hebert helps clients in the energy business solve their challenging legal problems. Her experience includes disputes that involve mineral royalties, mineral lease termination, implied obligations, mineral servitude maintenance, operating agreements, production handling agreements, blowouts, and oilfield environmental issues. She represents both individuals and businesses and gets excellent results. Ms. Hebert has been recognized in the Best Lawyers in America® ranking every year sin...

Joe Lavigne is a partner in the Labor & Employment Practice Group and an experienced litigator in trade secret and non-compete disputes. As a lead attorney on Jones Walker’s trade secret and non-compete team, Joe focuses his practice on prosecuting and defending claims of employee misconduct involving trade secret violations, unfair trade practices, non-compete violations, invasion of privacy, Computer Fraud and Abuse Act issues, theft, and related disputes. He also advises clients ...

Sid Lewis is a partner and leader of the Labor & Employment Practice Group, where he consults and advises management and human resources personnel with respect to employment and labor laws. Sid advises clients throughout the United States in all industries, including retail, hospitality, healthcare, manufacturing, and service industries. A majority of his work involves general advice to employers on a variety of employment situations, including discipline, terminations, applications, leav...

Kevin LaVie practices in the area of admiralty and tort. He has a very broad-based practice involving nearly all aspects of maritime law including personal injury and death claims; cargo damage claims; dock damage and collision claims; Limitation of Liability matters; charter party and related commercial disputes (including ship arrests and Rule B attachments); insurance coverage disputes; oilfield indemnity actions; pollution matters; and various Coast Guard and immigration matters. His prac...

Kathleen Charvet brings more than 25 years’ experience counseling and advocating for employer and contractor clients across admiralty, maritime law, Longshore & Harbor Workers’ Compensation, and Defense Base Act matters. She has represented vessel owners, railroads, stevedoring companies, military employers, and insurers in complex litigation and regulatory matters nationwide. Kathleen’s collaborative approach involves expert witnesses, mediators, and courts to secure op...