CoStar Pushes Back In Antitrust Suit, Seeks Virginia Transfer

By Nate Beck · July 2, 2026, 5:40 PM EDT

CoStar Group has urged a Washington, D.C., federal judge to transfer a brokerage's antitrust lawsuit against the company to Virginia federal court, citing a mandatory forum selection clause in its terms...

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Case Information

Case Title

ONE REAL ESTATE LLC v. COSTAR GROUP, INC. et al

Case Number

1:26-cv-01735

Court

District Of Columbia

Nature of Suit

Anti-Trust

Date Filed

May 20, 2026