a real estate broker or appraiser who is a member of the National Association of Realtors
noun
a real estate agent
See Realtor in American Heritage Dictionary 4
(rēˈəl-tər, -tôrˌ)
A service mark used for a real-estate agent affiliated with the National Association of Realtors. This service mark often occurs in print in lowercase and in the plural as well: “The economic aftershocks are already rippling through the area's non-defense businesses, from realtors to pizzerias”(New York Times).