Subject: A tenant just tested a new kind of rent lawsuit
Preview: What the first case under Philadelphia's pricing law means for smaller operators.

Editor's Note

Today's LinkedIn post touched on a lawsuit testing a city's ban on algorithmic rent-setting. This issue goes deeper into what the case argues, and what it means even if you'd never run anything like the software involved.

The lawsuit testing what counts as price-fixing now

A Philadelphia tenant filed suit this month against her property manager, Willow Bridge, and RealPage, the company behind the software Willow Bridge used to set rent at two buildings. It's the first case under a city ordinance passed in 2025 that bars landlords from using tools that pull in other owners private pricing data to help set rent.

Here is what the software does. It pools rent figures from many landlords and hands each subscriber a recommended price. The software moves the numbers between landlords without either one picking up a phone, and the ordinance argues that still counts as coordination.

RealPage settled a related federal case two months ago, with no penalties attached, agreeing only to stop using competitors nonpublic data at runtime. This lawsuit tests whether Philadelphia's own law reaches further than that settlement did.

None of this touches the property most people reading this manage. RealPage's tools run on portfolios in the thousands. The two buildings named in the suit hold 244 units combined, still well past where a typical independent operator sits.

A court now has to decide whether pulling other owners numbers into a price recommendation counts as coordination, even with no call and no meeting between landlords. Once a court rules on that, the logic won't stay limited to one piece of enterprise software.

Some property management tools built for small portfolios already include a "suggested rent" or "comparable pricing" feature, built from data the platform collects across its own customers. Worth knowing which kind you're using.

Before you trust a number a tool hands you for rent:

  • Ask where the suggestion actually comes from - your own comps, public listings, or other landlords private figures.

  • Check whether the underlying data is aggregated enough to protect any single competitor's number.

  • Make sure you could explain that figure in one sentence if a tenant or a regulator asked.

Philadelphia's ordinance was modeled on one in San Francisco. Nothing says it stops at two cities.

Did You Know?

A White House Council of Economic Advisers analysis, published in December 2024, put the added cost to renters nationwide from algorithmic pricing software at $3.8 billion for the year. That estimate came out well before this year's settlement and lawsuit, and it is part of why cities started writing ordinances like Philadelphia's in the first place.

Until next week,
Tomas

Keep Reading