TOKYO— Sonnenblick-Goldman Co. was the exclusive advisor to Pacific Century Group Japan Co. Ltd— developers of this city’s newest luxury hotel— in the negotiation of long-term agreements with Four Seasons Hotels and Resorts. The 57-room luxury boutique property is slated to open this fall in central Tokyo as part of Pacific Century Place, Marunouchi, Tokyo, a mixed-use development adjacent to Tokyo Station in the city’s financial district.