Berkshire Hathaway HomeServices, part of the HSF Affiliates LLC family of real estate brokerage franchise networks, has announced that South Florida luxury real estate leader EWM Realty International has joined its network operating as Berkshire Hathaway HomeServices EWM Realty. The 55-year-old, full-service brokerage is led by CEO Ron Shuffield, one of South Florida’s most respected operators in the business.