I have a great business Portugues teacher. She not only helps me with business Portugues but also with the tiny things in business life, which suddently become an issue when you're working in a new langugage and culture. Like presentations, emaills to clients, words and time forms which are perceived differently from what you would expect (e.g. perceived as insecurity when you wanted to be polite, etc). I can really recommend Mila, she is a great help and available for emergenies, too. Let me know if you want her contact details.