Carmen R. Toledo

• Represented a forestry products company in an evidentiary hearing before the Mississippi Commission on Environmental Quality, which resulted in findings rejecting plaintiffs' claims that the company had illegally disposed of wastes on their properties.
• Obtained dismissal of medical monitoring and RCRA claims in groundwater contamination mass joinder cases in Oklahoma federal court.
• Representing an international energy company in the negotiation and settlement of related class action, mass joinder and municipal enforcement actions in Madison County, Illinois, asserting property damage and medical monitoring claims from alleged exposure to groundwater contamination.
• Defeated class certification in an alleged groundwater contamination case in Oklahoma federal court; in an occupational exposure case in New Jersey state court; and in a breast implant case in Utah state court.
• Won a motion to exclude plaintiffs' valuation economist in Oklahoma federal court.
• Represented a carbon black manufacturer in mass joinder lawsuits filed in West Virginia by hundreds of current and former neighbors.
• Represented Union Carbide Corporation as part of a national coordinating counsel team in individual and class action litigation in 19 states, involving personal injury, wrongful death, medical monitoring and fraud claims arising from alleged exposures to vinyl chloride.
• Obtained dismissal of fraud, conspiracy and injunctive relief claims asserted in a mass joinder case pending in Mississippi federal court that asserts personal injury and property damage claims as a result of alleged illegal disposal of hazardous wastes.
• Successfully defended Hercules Incorporated in a number of Georgia, Mississippi and Texas cases involving alleged exposure to toxaphene and other chemicals.
• Coordinated settlement of numerous complex property damage class actions with the aid of geographic information system (GIS) technology.

Carmen Toledo helps corporations navigate high-stakes toxic tort, environmental, and product liability disputes to minimize exposure and protect business continuity. Whether the challenge is an individual case, a mass joinder action, a class certification fight, or a multi-jurisdiction contamination dispute, she delivers results — dismissals won, class certification defeated, experts excluded, and complex settlements structured to let clients move forward with confidence.

Carmen currently represents major energy, chemical, and manufacturing companies in disputes where environmental liability, regulatory enforcement, and mass tort exposure converge. Her recent work includes coordinating the resolution of overlapping class action, mass joinder, and municipal enforcement proceedings for an international energy company facing groundwater contamination claims — and securing a favorable federal court ruling on behalf of multiple energy entities in a Clean Water Act dispute.

Clients turn to Carmen when a single event triggers litigation on multiple fronts across several jurisdictions simultaneously. She brings order to that complexity by identifying the pressure points that drive resolution — reducing aggregate exposure, narrowing damages theories, and structuring settlements that account for overlapping claims and regulatory interests.

Carmen understands that complex toxic tort and environmental cases often turn on expert testimony — whether it involves causation, exposure modeling, or damages valuation. She regularly challenges opposing experts through targeted Daubert motions, narrowing or eliminating claims before they reach a jury. This approach has proven effective in federal court, where she has successfully excluded plaintiffs’ causation, technical, and damages experts, fundamentally reshaping the litigation outcomes in her clients’ favor.

Fluent in Spanish and English, Carmen also serves clients whose operations and disputes cross into Latin American and U.S. Latinx markets.