Complex sentence: Haynes and Boone LLP is one of the largest and fastest-growing law firms in the U.S. which has grown from a handful of lawyers in 1970 to more than 450 lawyers in 2005.
Split into simpler sentences: Haynes and Boone LLP is one of the largest and fastest-growing law firms in the United States. It has grown from a handful of lawyers in 1970 to more than 450 lawyers in 2005.