management, administration, operation, purchase, sale and development (maintenance, transformation, renovation, construction) of all properties, built or unbuilt, operation of tourist residences, expertise and brokerage in properties and commercial funds, purchase, sale and management of all securities, consulting in economic, financial, tax and legal matters, particularly in the real estate sector, execution of all fiduciary mandates, such as tax advice and representation, keeping of private, artisanal, commercial and industrial accounts, revision and control of accounts (cf. statutes for complete purpose)