When former U.S. Senator Joseph Lieberman decided to return to private legal practice, he wanted a job that would allow him and his wife to spend time with their seven grandchildren, who all live in New York City.

After receiving calls of interest from 16 law firms, Lieberman, a Yale Law School graduate and former Connecticut attorney general, opted to join Kasowitz Benson Torres & Friedman in the firm’s office on Broadway, between 50th and 51st streets. The 375-lawyer firm is ranked 124th on the recently released AmLaw 200 list, with gross revenues in 2012 of $250 million.