The Interstudis is a voluntary student organisation which works with international students in practical matters and organises several social events during the year. During the first couple of weeks, a tutor will guide you through the necessary administrative procedures and, if needed, will translate for those having problems understanding.
FF - Fremde werden Freunde
The Faculty of Business Administration and Economics offers a "host family program" for foreign students of all faculties. You may find it useful to have friends from outside the university, especially at the beginning of your stay. Host families help you get settled, offer you practical advise, and introduce you to German culture.
However, you are still responsible for finding your own accommodation.