Most 12-year-olds dream of being sports heroes or musicians when they grow up. Not Charles Sims. The Detroit-born son of a clothing store owner always wanted to be a lawyer. In sixth grade Sims, now 51 and a partner at New York’s Proskauer Rose, was assigned to write an essay on the person he most admired. His unusual choice: New York City Bar Association founder Samuel Tilden.

Sims grew up to become a copyright and First Amendment litigator. His high-profile clients have included New York’s League of American Theaters and Producers, the Motion Picture Association of America (MPAA), and legal publisher Matthew Bender & Company Inc.