Stephanie W. Roache has joined Sandpiper Realty, the agency announced this week. She will be working with her mother, Elaine T. Miller, one of Sandpiper’s top agents. Ms. Roache has a strong business background, having spent more than 25 years in sales management, selling business process outsourcing solutions to Fortune 500 companies. She also led a sales team responsible for new business development and customer service excellence.