Randall K. "Randy" Theunissen

Selected to the 2016 Louisiana Super Lawyer list in the Environmental Litigation practice area (other years recognized: 2013, 2014, 2015) 2011 Baton Rouge Area Environmental Lawyer of the Year Selected for inclusion in The Best Lawyers in America for Litigation - Environmental since 1995 Practice Concentration & Experience Summary: Since he began practicing in 1979, Mr. McNamara has handled a wide range of civil litigation in venues throughout Louisiana. Concentrating on energy litigation...

Alex Prochaska is special counsel in the Corporate and Litigation practice groups, where he focuses his practice on environmental law. Alex defends clients in enforcement actions brought by state and federal agencies alleging violations of environmental laws including the Clean Air Act (CAA), Clean Water Act (CWA), Resource Conservation and Recovery Act (RCRA), Coastal Zone Management Act, and their state counterparts. Alex also counsels clients in responding to information requests from gove...

Mark R. “Tiger” Pharr III has represented clients for more than 35 years in a wide range of matters, including construction defect, premises liability, insurance defense, personal injury, professional liability, and trucking. Tiger’s litigation practice includes jury trials, bench trials, mediations, and arbitrations, and he has handled appeals before state and federal courts. His experience also includes acting as a mediator and arbitrator in civil cases. Explore Tiger&rsqu...

Bob Duplantis has dedicated his entire career to the oil and gas industry. Prior to joining the firm in 1982 and establishing its Lafayette office, Bob spent more than a decade serving in-house oil company legal departments, including six years as a lobbyist in Baton Rouge, Louisiana. Bob’s law practice focuses on Louisiana oil and gas regulation and “meat-and-potato” legal issues. He routinely argues contract disputes affecting the oil and gas industry, including lease inte...

Sam Masur’s practice is concentrated in the areas of oil and gas litigation, general commercial litigation, oil and gas titles, oil and gas and oil field service company acquisitions and divestitures, and general business acquisitions and divestitures. In both Louisiana state and federal courts, Sam litigates oil and gas and general business contract disputes involving oil and gas leases, overriding royalty interest agreements, joint operating agreements, and distribution agreements and...

A Lafayette native, Jimmy earned his Juris Doctorate from Louisiana State University Law School in 1986. During law school, he authored an article entitled “Native Born Acadians and the Equality Ideal” 46 LA. Law Rev. 1151 (1986). He is admitted to practice in all federal and state courts in Louisiana, the U.S. Court of Appeals for the Fifth Circuit, and the U.S. Supreme Court. He is also admitted to practice in Texas. He is currently Treasurer of the Francophone Section of the Lo...

Selected to the 2016 Louisiana Super Lawyer list in the Environmental Litigation, Energy and Natural Resources Law, and Business Litigation practice areas (other years recognized: 2009, 2010, 2011, 2012, 2013, 2015) 2014 Baton Rouge Area Environmental Lawyer of the Year; 2016 Lafayette Area Environmental Lawyer of the Year Selected for inclusion in The Best Lawyers in America for Energy Law, Litigation - Environmental, Natural Resources Law and Oil & Gas Law Practice Concentration & E...

Suzette Marie Smith is a seasoned family law attorney with 36 years of experience guiding clients through divorce, child custody, support, spousal support, injunctions, and matrimonial agreements. A certified Family Law Specialist by the Louisiana Board of Legal Specialization, she is recognized as a Louisiana Family Law Super Lawyer and AV Preeminent rated by Martindale-Hubbell. Discover more about Suzette’s practice here .

Dorrell J. Brister is a top attorney recognized by Best Lawyers in the practice area(s) of Trusts and Estates. Dorrell J., who practices law in Alexandria, Louisiana, has been recognized since 2013. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Dorrell J. is held by other top lawyers in the same geographic and legal practice area.

Andrew Quackenbos is a top attorney recognized by Best Lawyers in the practice area(s) of Admiralty and Maritime Law. Andrew, who practices law in Lafayette, Louisiana, has been recognized since 2025. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Andrew is held by other top lawyers in the same geographic and legal practice area.