She serves as Chief of the Environmental Protection Division of the Massachusetts Attorney General's Office, where she oversees the work of attorneys on matters including civil environmental enforcement, federal impact litigation, and representation of Commonwealth agencies in appellate litigation. In 2007 Hoffer received a Boston Bar Association President's Award for her pro bono work at WilmerHale representing six detainees interned at Guantanamo Bay. Hoffer is a graduate of Hampshire and holds an MEd from the University of Massachusetts Amherst and a JD from Northeastern University School of Law.