Broker Commission & Listing-Data Litigation
Two years after the residential industry's NAR commission settlement reshaped how buyer-broker fees work, commercial real estate is having its own reckoning — not over commission splits directly, but over the listing-data infrastructure (led by CoStar) that brokerages use to price deals, plus a steady undercurrent of old-fashioned who-gets-paid disputes between brokers themselves.
What's driving disputes right now
Grounded in current market and legal reporting, not speculation — each item links to its source.
The Hub-and-Spoke Rent-Data Antitrust Suit
Commercial tenant FitFactariDC LLC sued CoStar Group along with CBRE, Colliers, Cushman & Wakefield, JLL, and Newmark in the Northern District of Illinois on June 12, 2026, alleging a Sherman Act "hub-and-spoke" conspiracy: CoStar allegedly collected sensitive lease data from the brokerages and redistributed it back to them, giving all six defendants near-real-time visibility into competitors' rents that let them "align asking rents, reduce concessions, and resist tenant negotiations." The suit seeks class treatment for office, industrial, and retail tenants across 49 metro markets since June 2022.
Why it matters: This is the first suit to target CRE brokerage commission/pricing conduct through a data-sharing theory rather than a direct commission-fixing claim — a template plaintiffs' firms may reuse against other data-pooling arrangements in the industry.
CoStar v. Crexi — Ninth Circuit Revives Monopolization Claims
In a June 23, 2025 opinion, the Ninth Circuit revived rival listing platform Crexi's antitrust counterclaims against CoStar, holding Crexi had plausibly alleged CoStar used exclusive-dealing arrangements with brokers and technological barriers to entry to maintain monopoly power over CRE listing and information markets.
Why it matters: Controlling listing-data infrastructure shapes how brokers price and market deals industry-wide — an appellate court letting this theory proceed raises the stakes for every downstream dispute over how that data gets used.
Brokers' Own Class Action Over CoStar Listing Fees
In April 2026, DiCello Levitt filed the first antitrust class action brought on behalf of CRE brokers and other market participants who paid CoStar for listing and data products, alleging CoStar unlawfully restrained customers' ability to use competing platforms and monopolized the CRE listing-services market in violation of Sherman Act Sections 1 and 2. The case is pending in the Eastern District of Virginia.
Why it matters: Unlike the tenant-side hub-and-spoke suit, this case is brought by the brokers themselves as CoStar customers — a sign the listing-data fight now has plaintiffs on both sides of the brokerage relationship.
Minority Owners Challenge an Inflated Sale-Side Commission
A trial is underway in Polk County, Iowa over the sale of Pavilion Park land near Des Moines: minority owners Eagle Nest Investments, Gratias Properties, and Thomas Gratias allege majority owner William Spencer and his companies sold 25.52 acres for $1.6 million — below its $1.99 million appraised value — while arranging for Spencer's own brokerage, Landmark Brokerage, to collect an unauthorized, above-market commission on the deal.
Why it matters: A recurring fact pattern in closely-held CRE ownership: a majority owner who also controls the listing brokerage has a direct incentive conflict that minority co-owners can challenge as a breach of fiduciary duty, independent of any antitrust theory.
Broker-vs-Broker: Who Gets Paid on the $56M Deal
A Florida lawsuit alleges broker Jaime Godur and his companies failed to pay co-agents Christopher Bauso and Claudia Herrera their share of the commission on the 2018 sale of the 382,000-square-foot Festival Marketplace in Pompano Beach to IMC Equity Group for $56 million — Bauso allegedly owed 20% of the gross commission, Herrera half of what remained.
Why it matters: The ordinary-course commission-split dispute — over who was the procuring cause and what a co-brokerage agreement actually promised — remains the most common source of broker litigation in CRE, even amid the bigger antitrust fights over listing data.
Does the NAR Settlement Even Reach Commercial Deals?
CCIM Institute's analysis of the 2024 NAR-DOJ settlement concludes the deal's core changes — barring buyer-broker compensation offers on the MLS and requiring written buyer-broker agreements — are drafted around residential MLS practice and largely don't reach commercial deals, which trade through commercial information exchanges rather than MLSs and don't typically carry MLS compensation offers at all.
Why it matters: The residential commission-litigation wave hasn't directly forced a change in how CRE co-broker deals get paid — but the same plaintiffs' bar that built nine-figure residential settlements now has a tested playbook, and CRE's own data-sharing practices are exactly what the CoStar suits are testing next.
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