The U.S. Federal Trade Commission has filed a lawsuit accusing property management company Greystar of swindling renters across the country out of at least $100 million using hidden fees.

The U.S. Federal Trade Commission and the State of Colorado have filed a complaint against Greystar, a multi-family rental property manager, alleging that it deceived consumers about rental costs with hidden fees,

The complaint filed Thursday charges that the country’s largest landlord failed to include information about numerous mandatory fees in its listings.