[“Selling Sunset” newcomer ](https://www.realtor.com/advice/reality-tv/selling-sunset-introduces-the-real-estate-apocalypse-and-what-it-takes-to-survive-today/) [Amanda Lynn](https://www.realtor.com/advice/reality-tv/selling-sunset-introduces-the-real-estate-apocalypse-and-what-it-takes-to-survive-today/) will have a plum opportunity to prove her selling power after landing the listing for a $70 million beachside haven beside a property owned by “Yellowstone” star Kevin Costner. While Lynn, 35, whose real name is Amanda Lhommedieu, is one of the newest agents to join the cast of
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