Jones, Day has mounted a defense, and the case is still pending.
The firm was founded in 1979 by 53 lawyers, most of whom were previously at Jones Day.
Jones Day says it has been very happy with its staff attorneys.
Jones Day is a full service, commercial law firm and has practice areas in:
Jones Day is especially renowned for its litigation practice, which numbers over 1,000 lawyers and is the largest in the world.
Jones, Day will not discuss its finances in detail.
The decision by Jones, Day to take the remaining 210,000 square feet came as workers prepared the site for construction.
She returned to the private practice of law in 1991, joining Jones Day as a partner.
Her father is a partner at Jones Day, a law firm in Washington.
Jones Day, with a claim of $1.6 million for legal services, is shown as the largest unsecured creditor.