To purchase, sell, mortgage, lease, manage, construct, develop, own and, in general, negotiate real estate; to purchase, sell, subscribe, invest, exchange or otherwise acquire and hold in portfolio, manage, develop, negotiate and capitalize on all bonds, whether secured or not, or shares, all participatory securities, all options or commodities, all standardized futures contracts and forward exchange contracts, commercial papers and securities of any kind, all precious metals, all precious stones, all works of art and all other valuable assets; to borrow or raise funds by issuing bonds, capital bonds, mortgages or other securities; to guarantee loans and lend funds to any person, company or corporation.