Bill > HB817

This bill prohibits landlords from using algorithmic devices that incorporate "nonpublic competitor data" when setting residential rent amounts. An algorithmic device is defined as a tool that uses algorithms to calculate rent based on data like local or statewide rental prices, with some exceptions such as monthly trade association reports or affordable housing programs. The bill specifically targets devices using "nonpublic competitor data", which includes non-public information about actual rent prices, occupancy rates, lease dates, and similar details obtained from market competitors. If a landlord violates this prohibition, it will be considered an unfair, abusive, or deceptive trade practice under Maryland's Consumer Protection Act, subject to associated enforcement and penalty provisions. The law will apply only prospectively, meaning it will not affect rental agreements executed before its effective date of October 1, 2025, and cannot be applied retroactively to existing lease calculations.

Transportation and Infrastructure

https://mgaleg.maryland.gov/mgawebsite/Legislation/Details/HB0817?ys=2025RS