She now works as the Director of Political Risk Analysis for Farallon Capital Management.
Sullivan graduated with a degree in political science from Stanford University and earned a master's degree in public management from the University of Maryland.
In 1994, Sullivan began working as the Special Assistant to Defense Secretary William Perry. There she helped manage the Secretary's relationship with the press corps, the White House and Congress. Notably, along with David Gergen, Sullivan coordinated the Defense Department and the U.S. military's interaction with the press during the invasion Haiti.
From 1996 to 1997, Sullivan served as the Chief of Staff to the United States Trade Representative Charlene Barshefsky. In her role she oversaw the operations of the office and developed negotiation strategies for the 1996 Telecommunications Agreement, granting China Permanent Normal Trade Relations status and the enforcement measures for the Intellectual Trade Agreement of 1996.
In 1997, Sullivan became Chief of Staff to Housing and Urban Development Secretary Andrew Cuomo in 1997. Sullivan worked on HUDs effort to stop bad landlords from taking advantage of federal assistance intended for low income housing. 
Sullivan is currently the Director of Political Risk Analysis for Farallon Capital Management, an investment firm with over $20 billion in aggregate capital. According to Farallon's website, her role includes identifying and tracking market opportunities created by regulatory and legislative changes within state and federal governments. She also manages Farallon's communication strategy.
Sullivan currently resides in San Francisco, California.
- Marinucci, Carla (2007-10-07 Edition). "State Dem group played hardball to kill GOP election system plan". San Francisco Chronicle. http://www.sfgate.com/cgi-bin/article.cgi?f=/c/a/2007/10/07/MNSESIOTG.DTL. Retrieved on 2010-08-23.
- Marinucci, p1
- "Plum Book". Senate Committee on Governmental Affairs and the House Committee on Government Reform. 1996 Edition. http://www.gpoaccess.gov/plumbook/1996/ag177.html. Retrieved on 2010-08-23.