Based in Sioux City, Iowa, the law firm of Corbett, Anderson, Corbett, Vellinga & Irvin, L.L.P., represents and advises clients in Siouxland Iowa, South Dakota and Nebraska. Communities served include Sioux City, Dakota Dunes, South Sioux City, McCook Lake, North Sioux City, Elk Point, Jefferson, Le Mars, Sergeant Bluff, Orange City, Moville, Sioux Center, Whiting and Onawa, and other locations in Woodbury County, Plymouth County, Sioux County, Monona County, Dakota County, Nebraska, and Union County, South Dakota.