Halstead Property CEO Diane Ramirez has seen real estate brokerage evolve from the days when your sphere of influence was your Rolodex and your territory was in a 20-block radius, to a world where technologies like social media, video and drone photography are part of the broker and agent tool chest. Ramirez’s New York City-based company has 29 offices serving the tri-state area, and 27 are storefronts — making interactive touch-screen displays an ideal way to bring consumers up to the window and interact with agents. “Before you know it, they’re in our door,” she says.