Daniel "Big Dan" Caldwell is a Managing Broker and Director of Productivity at Keller Williams Southern Arizona, where he leads The Big Rock Realty Group serving Tucson, Oro Valley, Marana, the Catalina Foothills, Vail, Sahuarita, and Green Valley.

Dan got into real estate the way he does everything — people first. He grew up in a small California town where neighbors looked out for each other, and he's built his business on that same standard: c...