In-depth coverage of the MLS industry: lawsuits, policy, data and the fight over listings.
Compass has challenged MLS listing-submission and cooperation rules through lawsuits and demand letters, and a growing number of MLSs — including CRMLS, OneKey and ARMLS with five other MLSs — have gone to court asking judges to declare their rules lawful. Every development, newest first.
OneKey MLS becomes the eighth MLS to ask a court to shield it from Compass's threatened antitrust claims, joining the case California Regional MLS filed earlier this month. The New York MLS says the brokerage's threats go back as far as March.
New York's OneKey MLS signed on as a co-plaintiff in CRMLS's federal case against Compass, and the two MLSs filed an amended complaint in Manhattan federal court asking a judge to declare their clear cooperation rules lawful. OneKey points to months of emailed litigation threats from Compass leadership as the reason it joined.
A panel of MLS and industry leaders, including Michael Wurzer, discusses how the MLS's role is shifting amid the multi-MLS lawsuit against Compass and the brokerage's wider campaign against cooperation rules. Topics include rule design, data control and what brokers now need from their MLS.
California Regional MLS's CEO and general counsel responded publicly to the antitrust suit Compass filed against the MLS. According to the report, they argued that Compass's complaint itself raises questions about whether some of its agents are following NAR rules and California law.
An Inman report traces how Compass's demand letters to individual MLSs developed into multiple court cases. According to the report, at least nine MLSs, with roughly 272,000 combined subscribers and users, have rejected the brokerage's demands or gone to court; the central question is whether a brokerage can publicly market homes while keeping them out of the MLS.
The Council of Multiple Listing Services is setting up a legal action fund topping $1 million. The trade group says the money will support legal matters with significance for the wider MLS industry as lawsuits multiply.
Commentary from the Notorious R.O.B. blog discusses the lawsuit filed by ARMLS and other parties against Compass and the arguments in the complaint.
The Council of Multiple Listing Services is proposing a legal fund of more than $1 million to help MLSs push back against legal threats. The move comes less than a month after Compass CEO Robert Reffkin escalated demands that MLSs allow off-MLS marketing of listings.
The official announcement from the six plaintiff MLSs — ARMLS, bridgeMLS, Canopy MLS, Doorify MLS, Hive MLS and REcolorado — and their law firm, Robinson Bradshaw. The release frames the suit as a defense of rules requiring publicly marketed properties to be shared with all MLS participants, and says it was filed after Compass threatened to sue unless the MLSs stopped penalizing agents who skip MLS submission.
Arizona Regional MLS joined BridgeMLS, Canopy MLS, Doorify MLS, Hive MLS and REcolorado in a joint federal complaint filed Oct. 21 in the Southern District of New York. The six MLSs, representing more than 120,000 professionals, want a judge to declare their cooperation rules lawful under federal and state antitrust law and to bar Compass from suing over them, after Compass sent demand letters in September threatening litigation.
HousingWire's report on the joint suit by ARMLS, Bridge, Canopy, REcolorado, Hive and Doorify. Rather than wait to be sued, the MLSs are asking a court for an injunction and a ruling that their cooperation rules — and the limits they place on office exclusives — do not violate antitrust law.
Independent broker Anthony Lamacchia commented on the listing-policy dispute in a video posted Oct. 19. According to the report, he criticized Compass's strategy and said he believes it is moving the industry toward a conflict over listings.
OneKey MLS refused Compass's demand to stop enforcing its rules on publicly marketed listings. The standoff tests whether homes that are marketed to the public must also be entered into the MLS, as Compass pursues CRMLS in court and weighs further actions.
OneKey MLS became the third MLS, after CRMLS in California and Unlock MLS in Texas, to publicly refuse to change its policies under pressure from Compass. CEO Richard Haggerty said the MLS believes the law supports its cooperation rules.
Commentary from the Notorious R.O.B. blog reviews the arguments in Compass's lawsuit against CRMLS.
A breakdown of the federal antitrust case Compass filed against California Regional MLS on Oct. 16. Compass wants a judge to stop CRMLS from enforcing its mandatory submission policies, which the brokerage says violate antitrust law.
Compass sued the California Regional Multiple Listing Service in the Central District of California. According to the report, the brokerage had given CRMLS an Oct. 6 deadline to stop fining agents under its listing policies.
Compass filed an antitrust lawsuit against CRMLS over its listing rules. Compass also said it will cover MLS fines for agents at its company-owned brokerages who publicly market listings that are not submitted to the MLS.
Robert Reffkin made his case for private exclusives, arguing MLS price and status histories can make homes appear damaged to buyers. He said 43% of listings had a price-drop history in September and 6% were taken off the market.
Unlock MLS rejected Compass' demand to stop fining agents over office exclusives. Compass threatened a federal antitrust lawsuit if penalties continue. Fines include monetary penalties and suspension.
CRMLS's own announcement that it filed suit against Compass in the Southern District of New York on Oct. 5. After refusing Compass's demand to stop enforcing its cooperation policies, the MLS asked the court for a declaratory judgment that those policies are lawful.
California Regional MLS turned down Compass's demands over its cooperation rules. The MLS said it was preparing for possible litigation and launching an MLS Cooperation Legal Defense Fund.
Zillow's Errol Samuelson told CMLS attendees that weakening the MLS could invite government regulation, pointing to congressional scrutiny of Compass and MRED and warning that restricting listing data carries risks.
Colorado's IRES MLS promoted 23-year veteran Julie Dahl to CEO. She succeeds Jeff Bosch, who is leaving to lead Arizona Regional MLS — one of the six MLSs now suing Compass.
Play video: Andrew Flachner on Zillow, Compass and Listing Transparency | Blueprint 202613:12Inman Blueprint 2026 session with Andrew Flachner on Zillow, Compass and listing transparency.
Play video: The ongoing battle between Compass and the MLSs20:42HousingWire video discussion of the ongoing dispute between Compass and multiple listing services.
Play video: Why Everyone Is Coming After Compass2:20The Real Deal video on the challenges Compass faces from multiple directions.
Play video: Anthony Lamacchia on the listings battle between Zillow, Compass and MRED18:06HousingWire interview with Anthony Lamacchia about the fight over listings involving Zillow, Compass and MRED, the Chicago-area MLS.