Mass Tort & Class Action Litigation

Class action lawsuits or mass tort actions?

If a person has suffered an injury due to a defective product or an incident – and others have suffered similarly – they have a choice as to the legal remedy they can pursue. Each decision has advantages and disadvantages, depending on the circumstances.

Class Action

A class action is a type of lawsuit where a group of people with the same or similar injuries sue the defendant as a group.

Like a mass tort (explained below), every class action has a triggering event, whether an airplane crash or a defective medical device. The claim is then commenced by a Representative Plaintiff who will effectively act as the face of the class.

Once the court certifies the class action, a notice is put out to all potential members of the class to ensure everyone with similar injuries can join in the lawsuit. Keep in mind, however, that a plaintiff who joins a class action forfeits his/her rights to pursue an individual action – unless they provide written confirmation of their desire to opt-out.

When the action is resolved – whether by mutual settlement or trial – everyone in that class is bound by that resolution. The funds from the settlement are then distributed according to the category into which each person falls, which depends on such factors as the severity of their injuries.

Mass Tort

Sometimes it makes sense to pool similar cases together in what is called a mass tort action. This way of proceeding allows plaintiffs to bring an individual case against a defendant alongside what is often hundreds of other individual plaintiffs in the same situation.

Mass tort actions are generally funded through contingency fee agreements, which means a plaintiff to an action does not have to pay expenses related to the case out of pocket while it works its way through the legal system. Instead, legal representatives only receive compensation (a portion of the award) if the action is successful. This means there is substantially less risk for plaintiffs and it can significantly enhance access to justice.

Unlike class action lawsuits, where the representative plaintiff pursues the claim on behalf of the class members, mass tort actions allows for plaintiffs to pursue their cases individually. These plaintiffs may have different interests and assessments of individual damages may vary.

Medical product liability cases are often tried as mass torts because the severity of resulting injuries can vary widely. HSH lawyers have extensive experience handling mass torts relating to such products as:

In these cases, we help determine the extent of your injuries, the damages and compensation you may be entitled to, and whether you would benefit from joining a mass tort action or pursuing your case by way of a class action.

Here For You

At HSH, we believe mass tort and class actions are important legal tools that can be used to achieve justice for plaintiffs who have been hurt by the conduct of another party. We will always treat you as an individual and consider your unique needs and interests, because you are more than just a file to us.

Mass Tort & Class Action Lawsuits

Ongoing Cases

Air canada Jazz Flight

Air Canada Jazz Flight AC8646 Crash

Air Canada Jazz Flight AC8646 Crash

On Mar 22, 2026, Air Canada Jazz Flight AC8646 collided with a fire truck while landing at LaGuardia Airport.
Pikangikum First Nation Lawsuit

Pikangikum First Nation

Pikangikum First Nation

Pikangikum First Nation sues Canada for $2B over decades of denied clean water, sewage, and fire safety infrastructure, seeking $200M in emergency relief.
Vanier Centre for Women Lawsuit

Vanier Centre for Women

Vanier Centre for Women

Vanier Centre for Women prisoners unlawfully segregated in Units 2 & 12 during construction (Feb 5–Jun 27, 2024). Class action filed against Ontario government.
G Adventures Crash Zambia Lawsuit

G Adventures Zambia Bus Crash

G Adventures Zambia Bus Crash

A G Adventures overland tour bus crashed in Zambia on February 18, 2026, after swerving on a wet road, tipping, and striking a cluster of trees at high speed.
gymnast

Gymnastics Canada

Gymnastics Canada

This action arises from the physical, sexual, and psychological abuse of gymnasts in Canada. The defendants are the major governing bodies of gymnastics in Canada.
pills

Opioids

Opioids

The lawsuit, filed in the Supreme Court of British Columbia, aims to recover millions of dollars in opioid-related health-care costs incurred by the provincial government.
Talcum Powder lawsuit

Talcum Powder and Ovarian Cancer

Talcum Powder and Ovarian Cancer

At HSH, our product liability lawyers are passionate about helping you find justice from companies whose negligence has hurt you or a loved one.
Cuban Canadian Flags

Havana Syndrome

Havana Syndrome

HSH has partnered with law firm Phillips Barristers to represent the Canadian Diplomats who suffered mysterious injuries known as Havana Syndrome while representing Canada in Cuba.
Plane

Ukraine International Airlines Flight 752

Ukraine International Airlines Flight 752

HSH and Camp Fiorante Matthews Mogerman LLP are working together to represent families of the Canadian passengers who were on Flight PS752.

Mass Tort & Class Action Litigation Blog

Security Camera
A Toronto court awarded $22.5 million to ~7,000 patients after plastic surgeon Dr. Martin Jugenburg recorded them in examination and operating rooms. Learn how HSH secured this landmark Ontario privacy ruling.
Pikangikum First Nation Lawsuit
Pikangikum First Nation has faced a decades-long water crisis. HSH is representing the community in a landmark $2 billion Federal Court action against the Government of Canada.
lawyer's gavel and Lady Justice on desk
Learn how trauma-informed strategies improve class action claims, enhance participation, reduce conflict, and support vulnerable claimants.

Among the best in Canada

Since 2011, our peers have consistently voted for us as one of Canada’s top personal injury firms in Canadian Lawyer Magazine’s annual rankings of the top personal injury boutiques in Canada.
Howie, Sacks & Henry LLP – Award – Canadian Lawyer Magazine
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