The U.S. Department of Justice has accused several Houston-area landlords of colluding to inflate rent prices, expanding its antitrust case against RealPage, a Texas-based company whose software at the center of an alleged rent price-fixing effort.

The DOH had sued property management software company RealPage of letting landlords collude by sharing their pricing information with the company's software, which then recommends rent prices.

Six of the country’s most powerful landlords were named in a lawsuit brought forth by the U.S. Justice Department. Blackstone, Cushman & Wakefield, Greystar, Camden, Pinnacle, Willow Bridge, and Cortland were all implicated.

Cushman & Wakefield was among six large landlords sued by the U.S. Department of Justice over alleged anticompetitive practices in housing rental markets, the DOJ said on Tuesday.

The U.S. Department of Justice (DOJ), alongside several state attorneys general, has filed an amended antitrust complaint against RealPage and six of the nation’s largest landlords.

The U.S. Justice Department is suing several large landlords for allegedly coordinating to keep Americans’ rents high.

Six of the United State’s biggest landlords have been sued as part of a case against harmful algorithmic pricing schemes. According to the Justice Department, Attorneys General of Illinois and Massachusetts have joined the ongoing legal battle against RealPage and a swathe of other landlords.

The U.S. Justice Department is suing six major landlords for allegedly collaborating to keep rents high. The lawsuit accuses the landlords of using RealPage's rent-setting algorithm and sharing sensitive data to avoid lowering rents.