Consulting, brokerage and trading in connection with real estate of all kinds, execution of all related business. The sole proprietorship may establish branches in Switzerland and abroad, participate in other companies in Switzerland and abroad, acquire or establish similar or related companies, and enter into all transactions and conclude contracts that are suitable to promote the purpose of the sole proprietorship or are directly or indirectly related to it. The sole proprietorship may acquire and sell properties to promote the purpose of the company.