A realtor walks through the dining room during an open house at a home in Seattle, Washington, on March 26, and the National Association of Realtors agreed to settle litigation over commission rules for US real estate agents, clearing the way for possible changes in how Americans buy and sell homes.
Mandatory Credit:	David Ryder/Bloomberg/Getty Images via CNN Newsource

A realtor walks through the dining room during an open house at a home in Seattle, Washington, on March 26, and the National Association of Realtors agreed to settle litigation over commission rules for US real estate agents, clearing the way for possible changes in how Americans buy and sell homes.
Mandatory Credit: David Ryder/Bloomberg/Getty Images via CNN Newsource

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Big changes to how you buy and sell a home go into effect today: What you need to know

On Saturday, a new set of rules governing how most real estate professionals do business in the US officially take effect — and the changes could potentially upend how Americans buy and sell homes.