If They Wronged You, We Fight For You

Mass tort litigation allows individuals harmed by the same defective product, negligent corporate or governmental conduct, or dangerous drug to pursue accountability through coordinated legal action while preserving their individual claims.

What Is Mass Tort Litigation?

Mass tort litigation allows individuals who have been harmed by the same product, environmental disaster, or corporate negligence to pursue justice through coordinated legal action. Unlike class actions, each plaintiff in a mass tort maintains their own individual case — which means your specific damages, injuries, and circumstances are evaluated independently.

At Keosian Law LLP, we handle mass tort cases involving California wildfires, environmental contamination, defective products, and dangerous consumer goods. No attorney fees or costs unless we recover for you.

Who qualifies for a mass tort? You may be eligible if you have been physically harmed, suffered property damage, or experienced financial losses due to a product defect, environmental hazard, or corporate misconduct that has affected multiple people. Our attorneys can evaluate your situation during a free consultation.

Mass tort cases often involve complex scientific, medical, and regulatory evidence. Our firm partners with industry experts, engineers, and investigators to build compelling cases that hold negligent parties accountable. Whether you're dealing with fire damage, toxic exposure, or defective products, we have the resources to fight for your rights.

Active & Resolved Cases

Our experienced attorneys are actively pursuing justice in these mass tort actions. If you have been affected, you may be entitled to compensation.

Boyle Heights, Los Angeles, California

Boyle Heights Warehouse Fire (Lineage Cold-Storage Facility)

Keosian Law LLP is reviewing potential legal options for residents, renters, homeowners, and business owners near the Lineage cold-storage warehouse at 1400 South Los Palos Street in Boyle Heights, where a fire burned for roughly eight days beginning June 17, 2026. The cause, scope, and responsibility for the fire remain under investigation.

California

MultiPlan / Claritev Repricing

California healthcare providers whose out-of-network reimbursements were quietly slashed by MultiPlan (now Claritev) repricing may be owed compensation. Free, confidential review.

California

GLP-1 / Ozempic Injuries

Used a GLP-1 drug like Ozempic or Wegovy for weight loss and developed serious GI complications? You may be owed compensation. Free, confidential consultation.

California

Social Media Mental Health Harm

Teens and young adults harmed by addictive social media platforms — anxiety, depression, eating disorders, or self-harm — may have a claim. Free, confidential review.

California

Roblox Gaming Addiction

Did your child suffer behavioral harm or unauthorized charges from Roblox? Parents in California may have a claim. Free, confidential consultation.

Garden Grove, Orange County, California

Garden Grove Chemical Emergency (GKN Aerospace MMA Release)

Keosian Law LLP is reviewing potential legal options for residents, renters, business owners, and property owners affected by the methyl methacrylate (MMA) release and hazardous-materials emergency at the GKN Aerospace facility in Garden Grove. The cause, scope, and responsibility for the incident remain under investigation.

California

Olympus Endoscope Infections

Developed an infection or illness after an endoscopic procedure with an Olympus device? You may be owed compensation. Free, confidential review.

Simi Valley, California

Sandy Fire

Keosian Law LLP is reviewing Sandy Fire claims for Simi Valley, Bell Canyon, Box Canyon, and nearby Ventura County residents, renters, businesses, and property owners.

California (Statewide)

California FAIR Plan Fire Damage Claims

If the California FAIR Plan has delayed, denied, or underpaid your fire damage claim, you may be entitled to the full compensation you deserve. We are investigating FAIR Plan policyholders who have been shortchanged on wildfire, smoke, soot, and ash damage claims.

Los Angeles County, California

Palisades Fire

Victims of the Palisades Fire may be entitled to compensation for property damage, injuries, and losses.

Los Angeles County, California

Eaton Fire

Victims of the Eaton Fire may be entitled to compensation for property damage, injuries, and losses caused by the fire.

Los Angeles County, California

Chiquita Canyon Landfill

Communities near Chiquita Canyon Landfill are experiencing health problems and property damage from landfill emissions and underground chemical reactions.

Los Angeles County, California

Sunshine Canyon Landfill

Residents near Sunshine Canyon Landfill have reported health issues and property damage from toxic emissions and odors emanating from the facility.

Carson, California

Carson Dominguez Channel Contamination

Residents of Carson and surrounding areas have been exposed to toxic contamination from the Dominguez Channel, causing widespread health effects.

City of Industry, California

Quemetco / Ecobat Battery Recycling Plant Contamination

Communities near the Quemetco battery recycling facility have been exposed to lead and other toxic contaminants.

Los Angeles, California

Deering Avenue Groundwater and Soil Contamination

Residents near the Deering Avenue site have been exposed to groundwater and soil contamination from industrial activities.

Canoga Park, Los Angeles, California

Rocketdyne Canoga Avenue Facility Contamination

Keosian Law LLP is reviewing potential legal options for residents, property owners, businesses, and former workers connected to solvent contamination at the former Rocketdyne rocket engine plant at 6633 Canoga Avenue in Canoga Park. June 2024 testing found trichloroethylene (TCE) and perchloroethylene (PCE) above environmental screening levels at every location sampled.

Simi Valley, California

Rocketdyne / Santa Susana Field Laboratory (SSFL) Contamination

Communities near the former Rocketdyne/Santa Susana Field Laboratory have been exposed to radioactive and chemical contamination.

Nationwide

Citibank Discrimination

Citibank has been accused of discriminatory lending practices affecting minority borrowers.

Nationwide

Life Insurance Living Benefits Rider

Policyholders may have claims against life insurers who failed to properly disclose or administer living benefits riders.

Nationwide

Carefree Panty Liners Lawsuit

The Carefree Panty Liners lawsuit involves claims that certain chemicals in the products caused adverse health effects in women. Multiple class action lawsuits have been filed against the manufacturer.

Maui, Hawaii

Maui Fire

Victims of the devastating Maui wildfires may be entitled to significant compensation for their losses.

Porter Ranch, California

Porter Ranch Gas Leak

The Aliso Canyon gas leak was the largest methane leak in U. S. history, affecting thousands of Porter Ranch residents.

Los Angeles and Ventura Counties, California

Woolsey Fire

The Woolsey Fire destroyed thousands of structures and burned nearly 100,000 acres in 2018.

Los Angeles County, California

Station Fire

The 2009 Station Fire was the largest fire in the history of Los Angeles County.

Los Angeles County, California

Saddleridge Fire

The 2019 Saddleridge Fire burned over 8,000 acres in the Sylmar area of Los Angeles.

Don't Wait — Your Rights May Be Limited

Mass tort cases have strict deadlines. Contact us for a free consultation.