The encyclopedia · Legal & Compliance · Legal decision · 2019–2025
RealPage's rent algorithm ran a landlord cartel — DOJ forced it to stop
The US Justice Department alleged RealPage pooled confidential rent data to set prices for competing landlords — and made it stop.
RealPage · 2025-11-24
What happened
On 24 November 2025 the US Department of Justice and RealPage reached a settlement in an antitrust case accused of letting the company's rent-pricing software act as a cartel for landlords.
The DOJ's complaint alleged RealPage relied on nonpublic, competitively sensitive information that competing landlords handed over, gave them daily rental price recommendations, and included features designed to limit price decreases and align prices between rivals. It also hosted meetings where competing property managers shared sensitive data.
Under the proposed consent judgment RealPage agreed to stop using competitors' nonpublic data to set rental prices in real time, to train its models only on information aged at least twelve months, to stop running market surveys that collected sensitive data, and to accept a court-appointed monitor. More than two dozen property managers had already settled separately over their use of the software.
The deal carried no fine and no admission of wrongdoing. Ten states that had joined the suit were not part of it, and critics said the new limits still left loopholes.
Why it happened
- A pricing tool that pooled confidential data from competing landlords turned each landlord's system into a shared pricing desk, so none of them had to undercut a rival to win a tenant.
- Features engineered to stop prices falling and to align prices between competitors treated the rental market as something to be managed rather than competed in.
- Making the private data the product let the software owner sell coordination as a feature, and the fine was replaced by limits on how the data could be used.
The lesson
An algorithm that combines confidential data from competitors is coordination in software form — a distributor of rivals' pricing data runs a cartel the moment the data stops being theirs.
Aftermath
The settlement still needed a judge's approval and a 60-day public comment period under the Tunney Act. Ten states that had joined the DOJ's lawsuit were not covered by the deal, and the DOJ said it would keep pursuing the property management companies that used the software. The case sat alongside new state laws in California and New York aimed at rent-setting software, making RealPage a defining test of whether algorithmic price-fixing counted as collusion.
Sources
- Justice Department Requires RealPage to End the Sharing of Competitively Sensitive Information — US Department of Justice
- New limits for rent algorithm that prosecutors say let landlords drive up prices — NPR / Associated Press
spotted an error? The club wants to know.
More like this
Anthropic settled a $1.5B copyright lawsuit — the price of training AI on pirated books
Ross Intelligence trained its AI on Westlaw's headnotes — a court called it theft
Apple's Watch infringed a rival's blood-oxygen patent — the US banned it at the border
Somewhere, someone solved the problem this company failed at. 2nd Opinion →
Comments · 0
Sign in to join the comments.