If your parents or grandparents were Citizens of the United States, you may already be a citizen! Call our office at 414-383-8800 for a consult to see if you are already a citizen. If we can make a persuasive argument that you already are a U.S. citizen, we can then decide whether to file for a Certificate of Citizenship via form N-600 and/or to file directly for your U.S. passport.