Kirk Landry

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 dama...

Mack Gregorie is an attorney with Kean Miller in Baton Rouge, Louisiana, focusing his practice on Corporate Law and Real Estate Law . He advises clients on a wide range of business and corporate transactions, including commercial and industrial real estate matters and finance-related issues. His work regularly involves representing international petrochemical companies, energy producers, banks and other financial institutions, as well as buyers and sellers, landlords and tenants, and lenders ...

Jeff Gray is a senior partner in the Corporate Practice Group. For more than 30 years, Jeff has concentrated on corporate and commercial transactions, with an emphasis on commercial real estate development. Jeff has served as outside counsel to numerous Fortune 500 companies as well as local, regional, and national real estate developers. Jeff has also served as outside counsel for a broad array of national and international clients in the energy sector, with a focus on industrial site acquis...

Ryan Q. Moon is a top attorney recognized by Best Lawyers in the practice area(s) of Tax Law. Ryan Q., who practices law in Baton Rouge, Louisiana, has been recognized since 2026. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Ryan Q. is held by other top lawyers in the same geographic and legal practice area.

Gibbons Addison is a partner in the Litigation Practice Group. He represents clients in all phases of litigation and alternative dispute resolution. Gibbons litigates in state and federal courts across Louisiana and Texas. He represents individuals and businesses, from local organizations to Fortune 250 companies, in commercial, real estate, property damage, construction, employment, personal injury, intellectual property, environmental, oil and gas, and successions, trust, and estate litigat...

Trey McCowan represents local, regional, and multinational energy and petrochemical companies in a wide range of complex litigation matters in state and federal courts. Based in Baton Rouge, Louisiana, he focuses his practice on Commercial Litigation , Natural Resources Law, Oil and Gas Law, and Personal Injury Litigation – Defendants. His work frequently involves high-stakes disputes arising from energy development, operations, and environmental issues across Louisiana and the Gulf Coa...

Mr. Cochran has an active trial practice handling insurance defense, medical malpractice, workers' compensation defense and general business litigation. He joined Stone Pigman in 2007 and has over 20 years of experience.

Dwayne Johnson is an environmental law attorney at Kean Miller in Baton Rouge, Louisiana. He represents clients on a wide range of environmental law matters, including air and water issues, solid waste, hazardous waste, underground storage tanks (USTs), wetlands , remediation under Superfund and RECAP, release reporting, incident response, and environmental permitting and enforcement. His practice also includes negotiating and implementing settlement agreements in class action and Superfund l...

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’ comp...

Jimmie Percy is a partner in the Litigation Practice Group and serves on the firm’s board of directors. Jimmie has a broad-based litigation practice that encompasses complex litigation involving business and commercial transactions, environmental and toxic torts, catastrophic injuries, police liability, municipal liability, state and local tax issues, as well as all aspects of insurance coverage disputes. He has extensive experience in oil and gas and pipeline-related litigation, includ...