Andi Schmied pretended to be an ultrawealthy European socialite to gain access inside the city's most exclusive real estate listings As “Gabriella,” an ultrawealthy European socialite searching for a New York apartment To pass as a convincing buyer, Schmied enlisted an antiquarian friend in Budapest to serve as her “husband,” and invented a 21-month-old baby, a personal chef, and a personal assistant named "Coco." She also blew the entire allowance from her residency at Dumbo’s Triangle Arts Association on manicures, makeup and clothes. Realtors would struggle to outdo each other when talking up a property: If one building had a...