Complex sentence: He has two older brothers, James and Ray, and an identical twin brother, Phillip, with whom he operates Huffines Communities, a large real-estate development company in the Dallas/Fort Worth area.
Split into simpler sentences: He has two older brothers, James and Ray, and an identical twin brother, Phillip. Alongside his twin brother, Huffines operates Huffines Communities, a large real-estate development company in the Dallas/Fort Worth area.