The economics of serial plaintiffs — who, why, and what stops the cycle

Strip out the slogans on both sides of the ADA Title III enforcement debate and what remains is a question of economics. A statute that authorises no damages, federal enforcement that has produced under 200 website-accessibility actions in a decade, and a fee-shifting clause at 42 U.S.C. §12205 that lets plaintiffs’ counsel recover hourly rates of $450 to $850 on cases that typically settle for $5,000 to $25,000 within ninety days. Roughly thirty named plaintiffs account for the bulk of high-volume New York and California filings. Two procedural reforms — California Civil Code §425.55 as tightened by SB-585, and New York’s 2024 CPLR §3211 amendment — have begun to reshape the geography of those filings without changing the underlying fee math. This dossier breaks the economy down: the named filers, the firm-side scanner pipeline that sources their cases, the per-case settlement-and-recovery split, the procedural rules that bite and the ones that don’t, and the disability-rights argument that the fee-shifting model — for all its excesses — is the only working enforcement floor the statute actually has.

01 · The fee math at the heart of Title III

Title III of the Americans with Disabilities Act contains no damages remedy. The statute authorises injunctive relief — an order requiring the defendant to remediate the violation — and, at 42 U.S.C. §12205, “a reasonable attorney’s fee, including litigation expenses, and costs” to the prevailing party. That single fee-shifting sentence is the load-bearing economic structure of the entire private-enforcement system. Understand what §12205 does, and you understand both why the serial-plaintiff economy exists and why the obvious reforms — capping filings, requiring pre-suit notice, adding filing fees — have less effect on the underlying volume than reformers expect.

The mechanics are straightforward. When a Title III case is settled or tried in the plaintiff’s favour, the plaintiff’s attorney files a lodestar fee petition: hours worked, hourly rate, multiplied. Across 2021–2024 fee petitions filed by the leading website-accessibility firms in the Southern and Eastern Districts of New York and the Central and Northern Districts of California, partner-level rates cluster in the $650–$850 band and associate rates in the $350–$500 band. A simple, uncontested website-accessibility case typically generates twenty to forty hours of attorney time across intake, complaint drafting, settlement negotiation, and the consent-decree paperwork — which yields a defensible fee claim in the $12,000 to $30,000 range before any negotiation.

That is the price tag that drives the modal defendant — a small e-commerce business with no in-house lawyer — to settle. The rational economic move, given a fee exposure of $30,000 and an injunctive-relief obligation that the defendant would have to fund anyway if pushed to judgment, is to negotiate a settlement in the $5,000 to $25,000 band that bundles the fee payment with a remediation undertaking. That settlement band is the operative reality of the docket. A small minority of contested cases — usually involving larger defendants with the appetite and budget to litigate — produce fee awards north of $100,000, which is the number reform-side advocates quote when they describe the fee structure as extortionate. Both numbers are real. They describe different cases.

The California overlay changes the arithmetic. Federal Title III pleadings filed in the Central and Northern Districts of California are routinely paired with a state-law Unruh Civil Rights Act claim under California Civil Code §51 et seq. Section 52(a) of the Civil Code attaches statutory damages of $4,000 per offence, and California courts have read each separate visit to a non-compliant establishment as a separate offence. A plaintiff who alleges three visits is alleging $12,000 in statutory damages on top of the fee claim. The Unruh multiplier is the reason the California docket carries a different settlement-band distribution from the New York docket, and the reason the California reform package — Civil Code §425.55 and SB-585 — focuses on filing-discipline procedures rather than on the damages remedy itself.

Cap the filings without changing the fee structure and you get a smaller docket of more expensive cases. Cap the fees without changing the filings and you collapse the only enforcement floor the statute has.

02 · The named plaintiffs

The 2024 New York CPLR §3211 amendment was drafted in response to a specific empirical pattern: a small set of non-resident plaintiffs appearing as the named complainant on dozens, in some cases hundreds, of website-accessibility complaints in a single calendar year. The California analogue — the §425.55 high-frequency-litigant declaration — has produced annually published lists of those plaintiffs since 2016. Together, the two data sources allow a reasonably crisp answer to “who, by name.”

In the California data, the high-frequency-litigant lists identify roughly two dozen individuals each year. The names recur across cycles. A handful of plaintiffs — represented by the Center for Disability Access (a unit of Potter Handy LLP), Pacific Trial Attorneys, Manning Law, and Wittenberg Law — appear in the published declarations year after year, with annual filing counts that range from the statutory floor of ten into the low hundreds. The §425.55 declaration also discloses the reason given for visiting each defendant’s establishment, which is the data that the SB-585 amendments tightened in 2024 to filter out tester-based claims where the plaintiff had never physically visited the business.

In the New York data, no public list of high-frequency plaintiffs exists, but the docket-level concentration is similar. SDNY and EDNY case-management records, when aggregated, surface a comparable cluster: a small set of legally blind plaintiffs represented by Mizrahi Kroub LLP, Stein Saks PLLC, and Mars Khaimov Law PLLC, each named as the lead complainant on a large number of website-accessibility complaints filed in serial waves against e-commerce defendants. The 2024 CPLR §3211 sponsors’ memorandum named these filing patterns explicitly as the conduct the reform targeted.

What the named-plaintiff concentration does not tell you is whether any individual plaintiff is acting opportunistically. The same legally blind individual who appears on forty SDNY complaints in a year is genuinely unable to use forty inaccessible websites; the doctrinal question is whether Title III’s standing rules require something more than that. The Supreme Court’s decision in Acheson Hotels, LLC v. Laufer, 601 U.S. 1 (2023), vacated as moot the lower-court ruling in a serial-plaintiff tester case and explicitly left the underlying standing question — whether an ADA “tester” plaintiff who never intends to patronise the defendant has Article III standing — for another day. That open question is part of the economic context: defence-side filings that argue lack of standing rarely produce dispositive rulings, because the cases settle before the court reaches the question.

03 · The scanner-driven case pipeline

The volume cannot be explained by the named plaintiffs alone. A single individual physically encountering forty inaccessible websites in a year is conceivable; a single individual physically encountering four hundred of them is not. What sits between the named plaintiff and the docket is a firm-side intake process built around automated accessibility scanners.

The mechanics, as reconstructed from defence-side practitioner accounts and the small set of fee petitions where the time-entry detail is itemised, run roughly like this. A scanner — sometimes one of the commercial WCAG audit tools, sometimes a bespoke in-house crawler — is pointed at a list of e-commerce domains harvested from a vertical (jewellery retailers, vape shops, niche apparel, food and beverage). The scanner produces a violation report for each domain: missing alt text, form-input labels, focus-trap failures, low-contrast text, missing skip links. The firm’s intake team triages the reports into a pipeline of “actionable” sites — typically those with multiple WCAG 2.1 Level A failures that an automated tool can flag with near-certainty. A complaint is templated against the actionable site, the named plaintiff signs (or is alleged to have signed) the attestation, and the complaint is filed.

The physical-access version of the same pipeline is older. The Center for Disability Access and other California Unruh specialists have run “drive-by” intake for parking-lot, signage, restroom, and ramp violations under 28 CFR §36.302 et seq. since the early 2010s — a paralegal in a vehicle, photographing non-compliant parking layouts, queuing them into a complaint template against the property owner. The 2015 enactment of California Civil Code §425.55 was a direct response to that pipeline; the 2024 SB-585 amendments were a response to the digital descendant.

The pipeline is what makes the per-case marginal cost so low. Once a firm has built the scanner queue and the complaint template, each additional filing costs the firm an hour of paralegal time and a $405 federal filing fee. A pipeline that produces a hundred filings a quarter at a per-case settlement value of $7,000 — net of the filing fee, paralegal time, and a partner’s review — produces a firm-level economic engine that no single defendant has the incentive to challenge to judgment.

04 · The settlement-recovery split

Inside a settled case, where does the money actually go? The §12205 fee-shifting mechanism, combined with Title III’s absence of a damages remedy, produces a recovery split that looks unusual relative to most other federal civil-rights statutes.

In a federal-only Title III case — one filed in SDNY, EDNY, or the Florida or Massachusetts districts with no state-law overlay — the named plaintiff receives no monetary damages. The settlement amount is the negotiated §12205 fee award (and litigation costs) plus a remediation undertaking. The plaintiff’s economic interest in the case is, in strict statutory terms, the injunctive relief and the satisfaction of bringing a meritorious claim. The fee is the attorney’s recovery. Some firms supplement this with a modest “service award” to the named plaintiff out of the fee — typically $500 to $2,000 — but the structure is the attorney’s, not the plaintiff’s.

In a California Unruh-coupled case, the recovery split is different. The $4,000-per-visit statutory damages under Civil Code §52(a) belong to the plaintiff. A settlement in a Unruh-coupled case typically allocates an amount to statutory damages (which the plaintiff keeps), an amount to attorneys’ fees (which the firm keeps), and a remediation undertaking (which the defendant funds separately). The Unruh damages are what give the California named plaintiff a direct economic stake in the case that a federal-only New York plaintiff does not have.

The remediation undertaking is treated separately. A defendant who settles for $20,000 will typically also commit to bringing the offending site or premises into WCAG 2.1 Level AA conformance (or, for physical sites, into 2010 ADA Standards conformance) within a stipulated window of six to twelve months, often verified by a third-party auditor. The cost of that remediation does not show up in the settlement number. For a small e-commerce defendant, the audit-and-remediation budget can match or exceed the fee payment — which is why some defence-side practitioners argue that the published settlement-band figures understate the true economic load on small businesses.

What the split also does not capture is the cost of cases that don’t settle. A defendant who fights and loses at summary judgment faces an uncapped lodestar fee award. The handful of contested cases that produced fee awards above $100,000 in 2022–2024 — concentrated in larger commercial defendants who chose to litigate the standing or nexus question — are the cases that anchor the upper bound of the per-case exposure curve. Most defendants settle precisely because they want to avoid that bound.

05 · The procedural reforms that bite

Two procedural reforms — one in California, one in New York — have changed the filing geography in ways the early data is starting to reveal. A third, federal, has been pending in successive Congresses since 2017 without enactment.

California: Civil Code §425.55 + SB-585 (2024)

California’s reform path is older and incremental. Civil Code §425.55, enacted in 2015, requires any plaintiff meeting the high-frequency-litigant threshold (ten or more disability-access claims in a 12-month period) to file a separate declaration with every Unruh complaint. The declaration must disclose prior filings, identify counsel, and state the plaintiff’s reason for visiting the defendant’s establishment. A $1,000 supplemental filing fee applies. The statute was upheld against an equal-protection challenge in Thurston v. Omni Hotels Management Corp., 69 Cal. App. 5th 299 (2021).

The 2024 SB-585 amendments tightened the §425.55 declaration. The new “personal visit” pleading requirement, in particular, was designed to filter out tester-based Unruh claims where the plaintiff had never physically visited the business and was relying on scanner output or a paralegal’s site survey to plead awareness of the violation. The early-2025 California Commission on Disability Access data shows that the absolute volume of high-frequency-litigant Unruh filings continued to rise modestly after SB-585 — but the proportion of filings against businesses where the plaintiff alleged a personal physical visit (as opposed to a tester or remote claim) rose more sharply, suggesting that the pipeline has adjusted rather than collapsed.

New York: CPLR §3211 (2024 amendment)

The New York reform is newer and more direct. The 2024 amendment to CPLR §3211 — the statute that governs pre-answer motions to dismiss — added a heightened-showing pathway for the dismissal of accessibility-related actions where the complaint is one of a series of materially identical filings against out-of-state defendants by a non-resident plaintiff. The sponsors’ memorandum named the high-volume website-accessibility filing patterns explicitly. The amendment does not abolish Title III claims in New York courts; it shifts the procedural posture in a way that defendants can use to force the plaintiff to plead a real New York connection or face dismissal.

The first measurable effect is in the H1 2025 Seyfarth data. SDNY and EDNY federal Title III filings fell roughly 40% in the first half of 2025 relative to the first half of 2024. Filings in the District of New Jersey rose by approximately 55%. Filings in the Central District of California rose by approximately 22%. The national federal-court total was down about 18% year-over-year. The reform did not eliminate the underlying economics — the fee math at §12205 is unchanged, and the named plaintiffs and their firms have simply relocated their docket — but it has measurably reshaped the geography.

Federal: the perennial pre-suit notice bill

The federal counterpart — a pre-suit notice bill commonly cited as the “ADA Education and Reform Act” — passed the US House in 2018 but has never cleared the Senate. The 119th Congress version, pending in 2026, proposes a notice-and-cure window that would require plaintiffs to send a written notice describing the alleged violation and give defendants sixty days to respond before filing suit. Disability-rights organisations have opposed each iteration on the ground that a notice-and-cure regime functionally converts a civil-rights statute into a complaint-system regime that defendants can game indefinitely without remediation.

06 · The disability-rights defence

The reform-side framing of the serial-plaintiff economy — “extortion scheme,” “drive-by lawsuits,” “click-by lawsuits” — has been the dominant vocabulary in the trade press and the legislative memoranda since the 2017 amicus filings by the US Chamber of Commerce, the Restaurant Law Center, and the Retail Litigation Center. The disability-rights bar has responded with a structural counter-argument that the trade press tends to treat as a footnote, but which is the more interesting half of the debate.

The disability-rights argument has three structural components. First, the empirical observation that the public-enforcement floor — DOJ filings under Title III, plus state attorneys general filings, plus US Attorneys’ Office actions — is so low that it cannot, by itself, generate meaningful compliance pressure on a national e-commerce population of several million sites. Second, the doctrinal observation that the §12205 fee-shifting mechanism was a deliberate Congressional choice in 1990, designed precisely to overcome the absence of a damages remedy and to deputise the private bar into the role of enforcement-cop. Third, the policy observation that the reforms most often proposed — pre-suit notice, filing caps, plaintiff caps — address the visibility of the litigation curve without addressing whether the underlying access gap is closing.

The NFB’s analysis in its 2024 policy brief makes the third point most directly. The brief reviews the post-CPLR-§3211 SDNY data, observes the geographic migration of filings, and notes that the most measurable effect of the New York reform is a redistribution of cases rather than a reduction in the access-failure rate of the underlying e-commerce population. “If the goal is fewer lawsuits, the New York reform is succeeding,” the brief observes. “If the goal is more accessible websites, the data does not yet show that result.”

The fee structure is the only enforcement floor the statute has. Reform that lowers the floor without raising public enforcement is reform that lowers enforcement.

07 · What stops the cycle

If “the cycle” is read narrowly — high-volume, scanner-driven, templated filings by a small group of named plaintiffs against a long tail of small e-commerce defendants — then three things, working together, would stop it. One: pre-suit notice with a remediation safe harbour that survives the disability-rights objection by being narrow enough not to extinguish the underlying claim. Two: a Supreme Court ruling on tester standing that the docket can actually rely on, replacing the open question left by Acheson Hotels v. Laufer. Three: a substantial increase in public Title III enforcement — DOJ filings, state attorneys general accessibility task forces — sufficient to displace some of the private-bar load. None of these three are reliably on the 2026 docket.

If “the cycle” is read more broadly — Title III enforcement as such, conducted by a private bar on a fee-shifting model because there is no other working enforcement mechanism — then it is not obvious that stopping the cycle is the right policy goal. The disability-rights organisations who have lived with the statute for thirty-six years tend to land here: the question is not whether the private enforcement model has costs (it does) but whether the proposed alternatives produce more accessibility, or less. So far, the data on the New York and California reforms suggests the answer is “neither” — the filings have moved, the access gap has not closed.

The 2026 cycle is therefore likely to look much like the 2025 cycle. The named plaintiffs will continue to file in the jurisdictions where the procedural reforms have not yet bitten. The firm-side scanner pipeline will continue to surface actionable violations across the long tail of US e-commerce. The settlement band will continue to sit in the $5,000–$25,000 range for the modal case, with the occasional contested case producing a six-figure outlier. The DOJ’s pending Title III website rulemaking, if it issues, will raise the technical floor of what compliance means and will likely expand rather than contract the pool of potential defendants. And the public debate will continue to talk past itself, with one side counting filings and the other side counting accessible web pages — two metrics that are not, on the available data, moving in the same direction.

For the broader frame — who files Title III suits, where, and how the post-2024 reforms have reshaped the federal-court geography — read the companion piece, Serial plaintiffs versus individual plaintiffs: who actually drives ADA Title III enforcement in 2026. For the underlying statute, read the ADA primer; for the wider US accessibility-law landscape, the regulations index.