Virginia Seitz looks more like a room parent than a high-powered attorney. In truth, she’s both. But unlike many other corporate lawyer moms, who seem to be channeling Nancy Pelosi, Seitz really does appear to be more suited to the next PTA meeting.

Seitz, 50, defies the stereotypes in other ways, too. She’s a star who bills at a 60 percent rate, a Sidley Austin partner who is out of the office by midafternoon every day.