Real estate service, namely, rental property management; Real estate services, namely, rental, brokerage, leasing and management of commercial property, offices and office space; Renting of commercial real-estate for non-residential purposes; real estate services, namely, rental of apartments; renting of buildings for permanent occupancy; renting of apartments; renting of office space; renting of retail space; leasing of real-estate; leasing of buildings; leasing of apartments; leasing of office space; leasing of retail space; leasing of commercial real-estate for non-residential purposes; building management for commercial buildings not used for residential purposes; apartment house management; providing real estate listings and real estate information via the Internet; real-estate brokerage featuring buildings, apartments, office space, and retail space; building management