ADA Serial Filers: Who's Suing Small Businesses and Why

ADA web accessibility lawsuits aren't random. They're not filed by people who happened to visit your website and couldn't use it. The vast majority are filed by a small group of repeat plaintiffs working with a handful of specialized law firms. This is a business - and understanding how it works is the first step to protecting yours.

The Numbers

In the first half of 2025 alone, 2,014 ADA web accessibility lawsuits were filed in federal court - a 37% increase over the same period in 2024. Here's who filed them:

Individual plaintiffs filed over half of all cases

73%

Of targets were businesses under $25M revenue

70%

Of all targets were e-commerce sites

Let that sink in: 31 people generated more than half of all federal ADA web accessibility lawsuits in a six-month period. Some of these individuals filed over 100 cases each.

How the System Works

Here's the typical workflow for a serial filing operation:

A plaintiff (or their firm) identifies targets at scale. They use automated tools to scan thousands of websites for accessibility issues. Some firms run WAVE or axe scans on entire directories of businesses. Others target specific industries (e-commerce, restaurants, retail) where violations are common.
A quick manual test confirms the violations. Someone at the firm tabs through the site, checks the accessibility tree, and documents specific violations. This takes minutes per site. The testing methodology is well-established.
A demand letter goes out. The business receives a letter describing specific accessibility violations and requesting a settlement - typically $5,000-$15,000. An estimated 35,000-50,000 of these letters were sent in 2025.
If the business doesn't respond, a complaint is filed. The complaint goes to federal court, adding legal fees and urgency. Many businesses settle at this stage because fighting costs more than paying.
The cycle repeats.If the business settles but doesn't fix its website, it goes back on the target list. 41-46% of businesses that settle an ADA case get sued again within two years.

Why Small Businesses Get Targeted

Enterprise companies have legal teams, compliance departments, and accessibility budgets. They're harder targets. Small businesses are easier:

Less likely to fight. A $10,000 settlement feels less painful than hiring a lawyer and going to court, even if you might win.
More likely to have violations. Without dedicated accessibility resources, most small business websites have significant issues - especially sites built on templates, WordPress themes, or Shopify stores with third-party apps.
Less likely to have fixed their site after the first settlement. Many small businesses pay the demand letter, breathe a sigh of relief, and never address the underlying issues. That makes them a guaranteed repeat target.
Volume is the business model. A law firm filing 500 cases at $5,000-$10,000 each is generating $2.5-$5 million in revenue. The economics only work at scale, and small businesses are where the volume is.

Is This Legal?

Yes. The ADA is a civil rights law, and it provides for private enforcement - meaning individuals can sue businesses for violations. There's no cap on the number of lawsuits a person can file, and courts have consistently upheld serial filing as legitimate enforcement of disability rights.

Some states have pushed back. New York, which sees the highest volume of ADA web lawsuits, has introduced procedural requirements to slow serial filing. But the fundamental right to sue remains intact.

Here's the thing: the law itself is good. Websites should be accessible. Disabled people should be able to use the internet. The problem isn't the ADA - it's the exploitation of the enforcement mechanism by a small number of plaintiffs who have turned compliance into a revenue stream rather than an accessibility outcome.

How to Stay Off the Target List

Serial filers look for easy targets. Here's how to not be one:

Know your actual risk

Get your site tested the way plaintiff attorneys test it - accessibility tree inspection and keyboard navigation, not just an automated scan. Know the full scope of your issues, not just the surface-level ones.

Fix the issues, not just the letter

If you've already received a demand letter, don't just settle and move on. Fix the issues they cited AND the ones they didn't mention. A partial fix leaves you exposed to the next filing.

Monitor continuously

Your website changes constantly - plugin updates, theme changes, new content, third-party widgets. Each change can introduce new accessibility issues. Weekly monitoring catches these before a plaintiff attorney does.

Document everything

Keep records of your scans, your fixes, and your monitoring history. If you're ever targeted, documented evidence of ongoing, good-faith accessibility work is your strongest defense. Courts look favorably on businesses that are genuinely trying.

Don't rely on an overlay

22.6% of ADA web lawsuits in H1 2025 targeted sites with overlay widgets installed. Overlays make you a bigger target, not a smaller one. Plaintiff attorneys specifically look for them.

The Bottom Line

ADA web accessibility lawsuits are concentrated, predictable, and preventable. A small number of plaintiffs file the majority of cases. They target small businesses because small businesses are easy targets - likely to have violations, likely to settle, and unlikely to fix the underlying issues.

The most effective defense isn't a lawyer. It's not an overlay. It's making your site genuinely accessible and keeping it that way. That removes you from the target list entirely - because there's nothing to file about.