The real estate industry has undergone significant changes over the past few years, and one chapter has now officially come to a close.
In late 2025, the U.S. Supreme Court declined—for a second and final time—to hear an appeal in the lawsuit challenging the National Association of REALTORS®’ former optional “no-commingling” rule. With the Court denying a rehearing request, the lower court rulings in favor of NAR remain in place, effectively ending the case.
What Was the No-Commingling Rule?
The optional policy allowed Multiple Listing Services (MLSs) to require that MLS listings be displayed separately from listings obtained from other sources on real estate websites. Importantly, the rule was never mandatory. Each MLS chose whether or not to adopt it.
The policy became the focus of a lawsuit filed by brokerage REX against NAR and Zillow, alleging that separating listings reduced competition and violated federal antitrust laws.
Why Does This Matter Today?
Although the courts ultimately ruled in NAR’s favor, the organization made a separate business decision in 2025 to repeal the optional rule altogether. According to NAR, feedback from MLSs across the country indicated that the policy had become less relevant as technology, consumer expectations, and listing platforms continued to evolve.
That means the legal battle is over—and so is the rule itself.
What Does This Mean for Buyers and Sellers?
For consumers, very little changes in day-to-day home shopping. Most buyers continue to search for homes through major real estate websites, brokerage platforms, or with the help of a REALTOR® who has access to the local MLS.
The repeal simply removes an optional display policy that many MLSs no longer relied upon. Instead, the industry’s focus has shifted toward improving listing transparency, expanding consumer access to information, and adapting to broader changes in real estate technology and practice.
The Bigger Picture
The conclusion of the REX lawsuit closes one of several high-profile legal matters that have influenced the real estate industry in recent years. While debates around MLS policies, listing transparency, and competition continue, this particular issue has now been settled.
For real estate professionals, the takeaway is clear: the industry continues to evolve, and success depends on providing accurate information, expert guidance, and exceptional service—regardless of how listings are displayed online.
As real estate moves further into 2026, consumers can expect continued innovation in home search tools, increased transparency, and an ongoing emphasis on helping buyers and sellers make informed decisions in an ever-changing market.
Source: REALTOR® Magazine
“SCOTUS Again Refuses to Hear Case on Repealed Optional ‘No Commingling’ Rule”
National Association of REALTORS®
