Rental of real estate in the nature of residential housing; real estate agency services relating to the purchase and sale of buildings; real estate agency services for the leasing of buildings; real estate services, namely, management of buildings; real estate management services relating to building complexes; rental of real estate; real estate, namely, rental of offices; real estate management services relating to shopping centers; rental of apartments and offices; housing services, namely, rental of student housing; real estate management; leasing or renting of buildings; leasing of buildings; leasing of office space; leasing of shopping center space; rental of business premises, namely, rental of commercial property, office and office space; rental of buildings and providing information relating thereto