The alleged collusion violates the District of Columbia's Antitrust Act, the office said. Washington, D.C., Attorney General Brian Schwalb's office said Tuesday that it's suing RealPage, a property management software company, and 14 of the district's largest landlords for allegedly colluding to raise rents. In a statement to CNBC, a company spokesperson for William C. Smith & Co. said the company does not comment on pending litigation. The software uses proprietary, nonpublic data and statistical models to estimate supply and demand and generate a price to maximize the landlord's revenue. RealPage has previously been sued by renters in the Southern District of California and Tennessee over the past year.

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Persons: Igor Golovniov, Brian Schwalb's, it's, RealPage, William C, Smith, didn't, Schwalb, Jennifer Bowcock, Berkshire Hathaway Organizations: Inc, Getty, Columbia's, Washington , D.C, CNBC, Southern District of, D.C, National Association of Realtors, CNBC PRO Locations: Washington ,, Southern District, Southern District of California, Tennessee, Seattle , Texas, Boston, Missouri, Berkshire