I am a middle school teacher. Can I go to America to see my brother during the summer vacation (with a green card)? Is it difficult to get a visa? Can someone help me?

Sure! It's just a little difficult! But you can try to prepare visa materials (visiting relatives visa), such as your job&; Income certificate (one in Chinese and English), real estate license (one in Chinese and English), application form and household registration book. . . You can go to the American Embassy in official website to have a look, and then go to the relevant intermediary for consultation!