Getting your Trinity Audio player ready...Zillow Group and Redfin were sued on Wednesday by five U.S. states for allegedly conspiring to thwart competition in online rental listings, including when Zillow paid Redfin $100 million to stop running apartment ads. Attorneys general of Virginia, Arizona, Connecticut, New York and Washington filed their antitrust lawsuit in the Alexandria, Virginia federal court. Both cases stemmed from a February agreement between Zillow and Redfin, which together with Apartments.com owner CoStar account for most revenue from U.S. online rental ads. Zillow and Redfin repeated their separate statements from Tuesday that their agreement gives property managers and advertisers access to more renters, and benefits renters by providing access to more listings. The case is Virginia et al v Zillow Group Inc et al, U.S. District Court, Eastern District of Virginia, No.