The Justice Department filed an antitrust lawsuit against RealPage Inc., a major operator of a database allowing property managers to track rental data. The lawsuit alleges that RealPage has acquired smaller competitors to monopolize the industry. The government claims RealPage’s pricing practices have inflated costs for property managers and renters. RealPage allegedly bundled fees for different services, forcing clients to buy unwanted products. The lawsuit seeks to force RealPage to sell assets and prohibit anticompetitive practices. RealPage denies wrongdoing and says it will fight the lawsuit. The case aims to promote competition and lower costs in the rental housing market.