GREENVILLE, SC -- About 250 Sotheby’s International Realty agents from more than 40 affiliates across the country plus the Grand Caymans saw the best the Upstate has to offer during the inaugural Carolinas Networking Event. “The response from SIR agents everywhere was almost overwhelming,” said Joan Herlong, CEO and founder of the agency. “The feedback we’re still receiving has been uniformly positive -- about greater Greenville, the incredible range of properties within our