English to Portuguese Bus/Financial Finance (general) Agreement between two financial institutions (Futures Markets)

(...) the Bank reasonably considers it necessary for its protection, to: sell, exercise, or offset any or all securities, any Contracts or other property long in any of the customer’s account opened pursuant to this Agreement; or "buy in" or offset any and all securities, any Contracts or other property short in any of your account with the Bank pursuant to this Agreement (…)