Zillow, the nation's leading real estate platform, is facing a new class-action lawsuit that claims the company used illegal kickbacks that encouraged affiliated agents to steer homebuyers to use its own mortgage business.

The lawsuit, filed on Nov. 7 in the U.S. District Court in Seattle, states that Zillow allegedly requires those in its Premier Agents and Flex program to meet specific Zillow Home Loan pre-approval quotas. Those that meet the quotas receive better leads and placement, the lawsuit said, while those who don't receive less leads or removal from the program.

"This case is about kickbacks that Defendants Zillow Group, Inc., Zillow, Inc. and Zillow Home Loans, LLC (together, "Zillow) gave to real estate brokers in the form of access to valuable customer leads, explicit

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