The Arbitration Clauses Most Likely to Get Thrown Out in 2026

A partner called me last month with a question I've been hearing more often: "The defendant rewrote their arbitration clause to name NAM. Do we still file, or do we walk away?"

My answer was neither. You run at it harder.

Here's why. Defendants spent the last eighteen months doing something predictable. They looked at AAA's fee schedule, looked at JAMS's fee schedule, did the math on 5,000 individual filing fees, and panicked. So they swapped their arbitration clauses to name cheaper, newer providers with mass-friendly batching protocols and lower per-claimant costs. NAM. ADR Services. In some cases, outfits like New Era ADR that barely existed before the mass arb wave hit.

The problem? Courts are now looking at those clauses and finding them unconscionable. And the firms that are paying attention are building their next twelve months of case selection around exactly that pattern.

What Heckman v. Live Nation Actually Means for Your Pipeline

In Heckman v. Live Nation Entertainment, the Ninth Circuit refused to compel arbitration under New Era ADR's mass arbitration rules. The court found key features of the framework unconscionable under California law: the fee structure was dramatically reduced in ways that limited claimants' procedural rights, discovery was restricted, and the bellwether determination model could bind large groups of consumers without their meaningful participation.

The Supreme Court denied Live Nation's cert petition in October 2025. That denial didn't create binding precedent nationwide, but it sent a signal that every plaintiff attorney should have circled in red: novel mass arbitration schemes that substantially rework bilateral arbitration concepts will face intense judicial scrutiny.

Translation for your practice: if a defendant recently switched from AAA or JAMS to a lesser-known provider with aggressive batching or bellwether provisions, that clause is more vulnerable to an unconscionability challenge than it has ever been.

The Three Features Courts Are Flagging

Not every provider swap creates an opening. The clauses that are drawing judicial skepticism tend to share three characteristics:

1. Fee structures that shift costs to claimants or eliminate the defendant's per-claim exposure. The whole economic engine of mass arbitration is the defendant's obligation to pay filing and arbitrator fees for each individual claim. When a provider's rules dramatically reduce or eliminate that per-claim cost, courts are asking whether the clause effectively strips the claimant's ability to vindicate their rights.
2. Bellwether provisions that bind non-participating claimants. A bellwether model where a few representative cases inform settlement negotiations is standard. A bellwether model where outcomes are binding on thousands of claimants who never presented their individual facts is something courts are treating very differently.
3. Arbitrator selection mechanisms that limit claimant input. If the provider's rules give the company or the provider outsized control over who decides the case, that's a factor courts weigh in the unconscionability analysis.

If your target's clause checks two or three of those boxes, you may have a stronger motion to compel back to AAA or JAMS (or to litigate in court) than you would have had under the old clause.

How to Build a Screening Workflow Around This

The firms I see moving fastest on this are doing something simple but disciplined. They're systematically tracking ToS changes across their target list. Not once a year. Monthly.

Here's the workflow that actually works:

• Pull the current arbitration clause for every company on your target list. Archive a dated copy.
• Set calendar reminders to re-pull those clauses every 30 days. Use a paralegal, a web-scraping tool, or both.
• When a clause changes, compare old vs. new. Flag any switch from AAA or JAMS to a different provider. Flag any new batching, bellwether, or fee-allocation language.
• Run the new clause through the three-feature test above. If it hits two or more, prioritize that target for deeper case evaluation.
• Document the timeline. When did the old clause apply? When did the new one take effect? Your claimant pool from before the switch may still be governed by the old, more favorable terms.

That last point is critical. Claimants who signed up or made purchases under the previous ToS version may have arbitration rights under AAA or JAMS rules, even if the company has since switched providers. The vintage of your claimant's agreement matters enormously, and most firms aren't tracking it.

The Timing Window Is Real

Right now, the case law on novel provider unconscionability is developing fast but hasn't fully settled outside the Ninth Circuit. That creates a window.

If you file challenges to these clauses in jurisdictions with strong unconscionability doctrines (California, obviously, but also New Jersey, Washington, Illinois), you're litigating in favorable terrain. If you wait two years for every circuit to weigh in, the defendants will have had time to redraft their clauses to cure the issues courts have identified.

The companies that switched providers did so to save money. They moved fast. Many of them moved sloppy. The clauses they adopted have features that courts are actively questioning. That combination of corporate haste and judicial skepticism doesn't last forever.

What This Means for Your Acquisition Spend

If you're running claimant acquisition campaigns, this changes where you point your budget. A target with a vulnerable arbitration clause is worth a higher CPA than a target with a bulletproof AAA clause, because the expected recovery path has two options instead of one: you either arbitrate under the new provider's rules or you successfully challenge the clause and end up in a more favorable forum.

I've seen firms model this as a simple probability tree. Assign a percentage to the unconscionability challenge succeeding. Weight your expected recovery accordingly. If the challenge has even a 30% chance of landing, the expected value of that claimant is materially higher than your standard mass arb case.

The firms that are going to win disproportionately over the next twelve months aren't necessarily the ones with the biggest ad budgets. They're the ones with the best clause-tracking systems and the willingness to file where the law is moving in their direction.

One More Thing Worth Watching

The Ohio State Moritz College of Law published a significant piece this year on what it calls "technologies of mass arbitration," cataloging how providers are adapting their rules and fee structures to the mass filing phenomenon. The paper is worth reading in full, but the key takeaway for practitioners is this: the institutional landscape is fragmenting. AAA and JAMS set rules in 2024 that created a workable (if expensive) framework. The newer entrants are experimenting with structures that may or may not survive judicial review.

Fragmentation creates opportunity for the firms that do the homework. It creates risk for the ones that don't.

Track the clauses. Test the new providers' rules against the unconscionability factors courts are already applying. And move while the window is open.