purchase, sale, exchange, promotion, development, construction on its own account or on behalf of third parties of movable and immovable assets, as well as all architectural work, establishment of neighborhood plans, subdivision, exploitation, management, rental, brokerage, financing of buildings, participation in all companies in the real estate sector; the company may also carry out all real estate transactions, excluding those subject to the LFAIE; the company may grant loans to associates or third parties, guarantee loans subscribed by associates or third parties, secure these loans by issuing or pledging mortgage securities or by subscribing to any other financial commitment, pledge its assets to secure any claim (cf. statutes for full purpose)