Philadelphia tenants filed two class actions in July and August 2026 alleging landlords used prohibited algorithmic rent-pricing tools in violation of the city’s Code § 9-813, escalating local risk for multifamily owners and managers.
The cases target Willow Bridge and Greystar and apply to properties in the city.
Philadelphia Tenant Suits Test Local Ban On Algorithmic Rent Pricing
A class of tenants alleges Willow Bridge subscribed to and used RealPage services at Philadelphia properties, and a separate class alleges similar use by Greystar.
According to reporting by Multifamily Dive, the Liu complaint was filed on July 16th in the Philadelphia County Court of Common Pleas.
These filings mirror a national pattern of follow-on claims built from the factual record developed in earlier litigation.
What Changed Under Philadelphia Code § 9-813
Philadelphia’s ordinance prohibits providing or paying for software that collects nonpublic competitor data and uses it to recommend rental prices, fees, terms or occupancy levels.
The law permits an aggrieved person to elect statutory damages of $2,000 per violation or treble actual damages, along with equitable relief, interest, and attorney fees and costs.
Local owners now face claims framed under a city-specific standard rather than traditional antitrust theories.
Operational Exposure For Center City To River Wards Portfolios
Exposure hinges on when any prohibited functionality was active at individual properties after the city’s rule took effect, which places a premium on building-level records.
Owners running pricing workflows across Center City high-rises, University City mid-rises, or River Wards assets will need to reconcile lease-up calendars with any historical use of restricted data.
Documentation gaps can slow leasing adjustments and elevate fee-shifting risk during disputes.
What To Monitor Next In Local Enforcement
Follow-on municipal claims are expanding and can present a more direct path to liability than federal antitrust cases.
In parallel, broader context on consent decrees and vendor product changes is captured in our prior coverage of expanding municipal restrictions on algorithmic rent-pricing.
As reported by a LawFlash, modifications by some software providers may reduce prospective risk but do not resolve allegations tied to past conduct.
Mechanics That Determine Liability And Damages
Property managers will need to map, for each building, the ordinance effective date against the dates specific pricing features and data sources were enabled or disabled.
Product versions, configuration settings, and vendor representations about data inputs can determine whether a local prohibition was implicated and for how long.
Prior coverage of tracking of algorithmic rent-pricing lawsuits shows that allegations of a vendor subscription alone do not establish continuous prohibited use or class-wide exposure.