A $1.78 billion verdict against the National Association of Realtors (NAR) in Kansas City has raised concerns about the fairness of commission fees in residential real estate. The case focused on agents splitting commissions with buyer's agents, which the jury found to be collusion. Homeowners in the US are joining a class-action lawsuit against agents and brokers, arguing that the commission-sharing system is a conspiracy and unfair. The NAR is facing additional lawsuits and scrutiny from authorities, including a request to resume an antitrust probe by the Justice Department.