ON THE morning of Sept. 20, 2001- when officials were still counting the dead and missing from terrorist attacks on the World Trade Center and threats of deadly anthrax virus filled the daily press- five of Manhattan’s biggest law firms sat down together for what participants knew was a moment of bearing witness to history.

“We’re not doctors, and we’re not construction workers,” said Edwin S. Maynard, a corporate partner at Paul, Weiss, Rifkind, Garrison & Wharton, shortly after the meeting, held in a conference room at his firm. “But there are things that lawyers can do in this awful time.”