Real estate investment services, namely, the purchase and sale of real property for investment purposes; real estate management services; real estate investment trust management services; real estate service, namely, rental property management; real estate services, namely, rental, brokerage, leasing and management of commercial property, offices and office space; real estate services, namely, property management services for condominium associations, homeowner associations and apartment buildings; real estate acquisition services; leasing of real estate; real estate appraisal; rental of real estate