Real estate agency services; Real estate service, namely, rental property management; Real estate brokerage; Real estate rental services, namely, rental of residential housing; Residential real estate agency services; Real estate services, namely, rental, brokerage, leasing and management of commercial property, offices and office space; Real estate consultation; Real estate consultancy; Providing information in the field of real estate via the Internet; Providing information in the field of real estate; Providing an Internet website portal offering information in the fields of real estate concerning the purchase and sale of new and resale homes and condos; Providing information in the field of real estate by means of linking the web site to other web sites featuring real estate information; Providing a database of information about residential real estate listings in different neighborhoods and communities; Providing a database of residential real estate listings within neighborhoods and communities specifically identified by users; Lease of real estate; Leasing of real estate; Classified real estate listings of apartment rentals and housing rentals; Commercial and residential real estate agency services; Arranging of leases and rental agreements for real estate; Real estate services, namely, condominium management services; Real estate services, namely, property management services for condominium associations, homeowner associations and apartment buildings