Well, it looks like the opposition to Compass and its efforts to change MLS cooperation rules is growing pretty quickly. Yesterday, October 21, 2026, six more multiple listing services joined forces and filed a federal lawsuit against Compass in the Southern District of New York. The MLSs include Arizona Regional MLS, Bridge MLS, Canopy MLS, REcolorado, Hive MLS and Doorify MLS. Like California Regional MLS (CRMLS), which filed suit against Compass earlier this month, these MLSs are asking the court to declare that their cooperation rules are lawful and prevent Compass from pursuing its threatened antitrust claims against those rules.





















