PARSIPPANY, N.J. — Law firm Day Pitney has signed a long-term lease for a 100,000-square-foot, Class A office building located in Parsippany. The firm is relocating to the building, which is located at 1 Jefferson Rd. within The Center of Morris County business park, from its previous offices at 200 Campus Dr. in Floram Park, N.J. The landlord, a joint venture between J.P. Morgan Asset Management, The Hampshire Generation Fund and Mack-Cali Realty Corp., was represented by James Nugent of Mack-Cali in lease negotiations. Mack-Cali also handles leasing and management of the building. Thomas Welsh of Welsh Chester Galiney Matone Inc. represented the tenant.