Since 1995, she has been a Lecturer in Law in the Legal Studies Department of the Wharton School, University of Pennsylvania, where she is a four-time winner of the Whitney Award for Excellence in Teaching. Since 2005, Jeri has also been a Lecturer in Law at the University of Pennsylvania Law School.

As a lawyer, following her graduation from the University of Pennsylvania Law School cum laude in 1984, she joined the commercial litigation firm of Bazelon, Less & Feldman, P.C. where she has been a partner (now shareholder) since 1992.

For the past twenty years, in addition to her teaching and writing, she has litigated, arbitrated and mediated complex cases involving various areas of commercial law. She has combined her work as an historian and lawyer by representing institutions such as the National Constitution Center in Philadelphia, Pennsylvania. In a recent jury trial, representing a plaintiff in a professional malpractice case, she obtained a jury award of $1.5 million that was reported to be one of the largest in that particular jurisdiction.

Jeri has served as a National Association of Securities Dealers (N.A.S.D.) Arbitrator in over 40 cases. She also was appointed an arbitrator in the SEC v. Prudential Securities, Inc., No. 93-2164 (D.D.C.).

She is a member of various scholarly and charitable institutions, including the Atwater Kent Museum of Philadelphia History, of which she was a Trustee. She is also a member of the Philadelphia Bar Association; Pennsylvania Bar Association; American Bar Association (Tort and Insurance Practice Section); the Historical Society of Pennsylvania, Library Company of Philadelphia and the American Philosophical Society. In 1995, Penn appointed her as a Penn Fellow to the Salzburg Seminar in International Law in Salzburg, Austria.