Victor L. Marcello

Andy St. Romain is a partner in the Corporate Practice Group and maintains an active practice advising clients on a variety of residential, commercial, and industrial real estate matters. Andy handles matters related to oil and gas leasing and infrastructure, mixed-use, and other retail development. He regularly drafts and negotiates purchase, lease, development, and financing agreements, conducts title examinations for issuance of owner and loan title insurance policies, and has been involve...

Paul Guarisco practices in the areas of administrative law, business and finance, telecommunications, energy and utilities, and regulatory and governmental matters. He practices primarily before the Louisiana Public Service Commission, representing telecommunications and pipeline carriers, and electric, gas, sewer and water public utilities in all aspects of regulation, including certification, compliance, tariffs, litigation, hearings, audits, rate cases, rulemakings, dispute resolution/medi...

Mark Marionneaux is a litigation attorney in the Baton Rouge, Louisiana office of Kean Miller. His practice focuses on products liability, toxic tort defense, and complex litigation matters, including Litigation – Environmental and Mass Tort Litigation / Class Actions – Defendants . He represents chemical, fertilizer, and energy companies in a broad range of disputes involving alleged chemical exposure, toxic tort claims, products liability, insurance defense, workers’ compe...

Dionne Rousseau is a partner in the Corporate Practice Group. She provides corporate finance, securities, mergers and acquisitions, and other transaction and corporate counsel to public and private entities. Dionne has served as lead outside corporate and securities counsel for 12 public companies and as boardroom lawyer for four of these entities. With more than 25 years of experience handling corporate finance and mergers and acquisitions transactions, she has led client service teams and d...

Gwen Harmon is a lawyer at Kean Miller in Baton Rouge, Louisiana, focusing her practice on Commercial Litigation and Litigation – Environmental, with a concentration on electronic discovery and electronically stored information (ESI). She brings more than 20 years of experience handling e-discovery matters in federal and state courts, supporting clients in complex, multi-party litigation. Her work has included large-scale document reviews involving products liability claims, toxic tort ...

Walt Green focuses his practice on cybersecurity, white collar criminal defense and governmental investigations, and litigation. He is a Financial Industry Regulatory Authority arbitrator dedicated to serving the securities industry and investing public. Walt was the United States Attorney for the Middle District of Louisiana and the Executive Director for the National Center For Disaster Fraud from 2013-2017. He retired from the United States Department of Justice with over 20 years of feder...

Kirk A. Guidry is an attorney licensed to practice law in Louisiana (since 1991), and is admitted to practice in all Federal Courts in Louisiana, and before the United States Fifth Circuit Court of Appeals and the United States Supreme Court. For 2013-2025, Kirk has been selected for inclusion in Louisiana Super Lawyers-Personal Injury Plaintiff, and enjoys a prestigious AV Peer Review Rating from Martindale-Hubbell, thus signifying the highest legal ability and ethical standards. Kirk was al...

Len Kilgore is a founding member of Kean Miller and has over 30 years of experience handling complex litigation matters. His practice focuses on environmental law and environmental litigation, including environmental and toxic tort matters and class actions. Based in Baton Rouge, Louisiana, Len represents local, national, and international commercial, energy, and industrial clients. Len’s litigation experience includes matters involving toxic tort claims, personal injury, property damag...

Katherine King is an attorney with Kean Miller in Baton Rouge, Louisiana, where her practice focuses on Administrative / Regulatory Law, Communications Law, and Energy Law. She advises clients on project development and electric regulatory matters involving a wide range of generation projects. Katherine regularly works with electric generators and project developers on structuring generation projects to meet business objectives while complying with federal energy regulatory requirements and L...

Jerry N. Jones is a partner in the Baton Rouge office whose practice includes assisting private and public entities with local, state, and federal governmental regulation; lobbying and governmental relations before local and state stakeholders; zoning; environmental permitting and compliance; public works contracts; contract negotiations, disputes, and administration; and energy, oil & gas. He has assisted domestic and international clients in the development, construction, and operation ...