J & F Plaza
This company manages several guesthouses in Tokyo. These are lower cost apartment housing for short term or long term guests. Also, they can assist in finding other types of accomodation. Located at Ishii Building 3F, 3-12-11 Shinjuku, Shinjuku-ku.
Century 21 SKY Realty
Residential services including showing properties, negotiating lease terms and providing documentation usually in both English and Japanese. Other services include office/commercial leasing, brokering purchase/sale of real estate and property management.