The lawsuit arrive as renters gasp for air in America’s squeezed housing market and federal officials move to intervene. The Biden administration last week accused several major landlords and property managers, including Greystar, of scheming together to keep rents high in a sweeping lawsuit.

Greystar is the largest property management company in the U.S. and operates thousands of properties across the Carolinas.

The Federal Trade Commission and the State of Colorado filed a complaint against the rental property manager alleging it has added hidden fees since at least 2019 that cost consumers hundreds of millions of dollars.