Complex sentence: In 2014, Jenner & Block was ranked first among all US law firms in the volume of its pro bono work and has ranked first in pro bono work in five of the past seven years, according to "The American Lawyer" annual rankings.
Split into simpler sentences: In 2014, Jenner & Block was ranked first among all U.S. law firms in the volume of its pro bono work, according to "The American Lawyer". With a top ranking in 2014, the firm has ranked first in pro bono work in five of the past seven years, according to "The American Lawyer" annual rankings.