Acquisition, trading, development, holding, rental, management and administration of condominium ownership, real estate and land of all kinds, as well as provision of services in the areas of construction, construction consulting, construction management, building maintenance, caretaking and execution of all related business; participations; assumption of financing; acquisition, management, brokerage and sale of real estate, securities, licenses, patents and other intangible assets; management of assets, in particular acquisition, management and sale of properties and companies; conducting patent, license and other intellectual property transactions.