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MLS Rule Challenges

About This Category

Track lawsuits challenging MLS rules including Clear Cooperation Policy, marketing restrictions, and regional MLS commission structures.

5

Total Cases

1

Settled Cases

$8M+

Total Settlements

Filter Cases
Showing 5 of 5 cases

All Cases (5)

Ongoing
Compass v. NWMLS
Compass v. NWMLS

Filed

April 25, 2025

Jurisdiction

Western District of Washington

Plaintiff Firm

N/A

Next Milestone

Trial Date: October 2026

Key Issue

NWMLS rules block Compass's three-phased marketing strategy

Impact

Limits on pre-marketing and office exclusive listings; affects how agents can market properties

Ongoing
Regional MLS Lawsuits
Regional MLS Commission Lawsuits

Filed

2020-2025

Jurisdiction

Various jurisdictions

Plaintiff Firm

Various plaintiff firms

Next Milestone

Multiple ongoing cases

Key Issue

Various class-action lawsuits filed against regional MLSs regarding commission structures. This category includes Nosalek v. MLS PIN (Massachusetts), Compass v. Northwest MLS (Washington), and MLS defendants in Moehrl case.

Impact

Regional MLSs facing increased legal scrutiny; may need to revise rules and practices

Settled$7.75 million
Nosalek v. MLS PIN
Nosalek v. MLS Property Information Network (MLS PIN)

Filed

March 2020

Jurisdiction

District of Massachusetts

Plaintiff Firm

Hagens Berman

Next Milestone

Claim deadline: March 15, 2026

Key Issue

Antitrust challenge to MLS PIN's buyer-broker commission rules; unique because MLS PIN is a large non-NAR-affiliated MLS

Impact

Demonstrates that non-NAR MLSs are also vulnerable to commission structure lawsuits; expands geographic scope of commission litigation to New England

Dismissed
TAN v. NAR
Top Agent Network (TAN) v. National Association of REALTORS®

Filed

May 2020

Jurisdiction

Northern District of Illinois

Plaintiff Firm

Keller Lenkner (representing TAN)

Next Milestone

NAR policy review ongoing

Key Issue

Challenge to NAR's Clear Cooperation Policy requiring MLS listing within 1 day of public marketing; alleged anticompetitive restriction on off-MLS 'pocket listings'

Impact

Dismissal agreement reached while NAR continues internal policy review; highlights ongoing tension between MLS transparency requirements and agent marketing flexibility

Ongoing
Compass v. NWMLS
Compass Inc. v. Northwest Multiple Listing Service (NWMLS Antitrust)

Filed

April 25, 2025

Jurisdiction

Western District of Washington (Judge Jamal N. Whitehead) — Case No. 2:25-cv-00766

Plaintiff Firm

Compass Inc. (plaintiff)

Next Milestone

Discovery ongoing; trial scheduled February 2027

Key Issue

Compass alleges NWMLS, a non-NAR-affiliated MLS serving the Seattle/Pacific Northwest market, operates as a monopolist by fining agents $5,000 for publicly marketing listings outside NWMLS before sharing them on the MLS. Compass argues this rule restricts seller-directed marketing, harms competition, and benefits incumbent brokerages that control NWMLS.

Impact

First major antitrust challenge to a non-NAR MLS; tests whether independent MLSs can enforce listing exclusivity rules without violating Sherman Act. Judge found Compass plausibly alleged antitrust harm. Trial set for February 2027; could reshape MLS governance beyond NAR's reach.