Advertising of commercial or residential real estate; providing real estate video tours for marketing purposes; real estate advertising services; real estate auctions; real estate marketing analysis; real estate marketing services; real estate marketing services in the field of residential real estate; real estate marketing services, namely, on-line services featuring the promotion of residential new construction, which also contains back office solutions for builders; real estate marketing services, namely, on-line services featuring tours of residential and commercial real estate; real estate sales management. Classified real estate listings of apartment rentals and housing rentals; lease of real estate; leasing of real estate; real estate brokerage; real estate consultation; real estate listing; real estate listing services for housing rentals and apartment rentals; real estate multiple listing services; real estate rental services, namely, rental of residential housing; real estate service, namely, rental property management. Real estate development; real estate development and construction of commercial, residential and hotel property; real estate development services in the field of retirement communities; real estate property cleaning, repair and maintenance services; real estate site selection