Would charging fees for Instant Offers make Zillow a broker?

For years, Zillow has promised not to become a real estate broker, and the company says that it still has no plans to do so -- Instant Offers doesn't represent buyers or sellers, nor does Zillow hold active broker licenses in Nevada or Florida. But one big question that remains is whether Zillow would need broker's licenses to operate its Instant Offers program legally if it were to begin accepting compensation. ...