carrying out all operations related to real estate activity, in particular rental, purchase, sale, management, design, construction, promotion, management, administration, operation, liquidation, financing of buildings or real estate companies; acquiring, selling, alienating, holding, building, renting, managing, administering, renovating, maintaining, repairing, carrying out any brokerage, promotion, valuation operation concerning buildings, movable property and securities, excluding operations prohibited by the LFAIE, and carrying out all movable or immovable property transactions (cf. statutes for complete purpose).