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... One of the landlords, Cortland Management, agreed to a settlement "that requires it to cooperate with the government, stop using its competitors' sensitive data to set rents and stop using the same algorithm as its competitors without a corporate monitor," the DOJ said. The pending settlement requires Cortland to "cooperate fully and truthfully... in any civil investigation or civil litigation the United States brings or has brought" on this subject matter.

The US previously sued RealPage, a software maker accused of helping landlords collectively set prices by giving them access to competitors' nonpublic pricing and occupancy information. The original version of the lawsuit described actions by landlords but did not name any as defendants.

The Justice Department filed an amended complaint today in order to add the landlords as defendants. The landlord defendants are Greystar, LivCor, Camden, Cushman, Willow Bridge, and Cortland, which collectively "operate more than 1.3 million units in 43 states and the District of Columbia," the DOJ said.

"The amended complaint alleges that the six landlords actively participated in a scheme to set their rents using each other's competitively sensitive information through common pricing algorithms," the DOJ said.

The phrase "price fixing" came up in discussions between landlords, the amended complaint said: ...