I have worked with Chen Immigration for both EB2-NIW and EB1 cases. Both of them have been approved without any RFE. From beginning to end they answered all questions in a timely manner and helped in case preparation. Based on my recommendation, several of my friends have already started their processes with them. Thanks to the WeGreened Team for making the entire process smooth and transparent. It was a great pleasure working with them. They really made this big success possible for me. I highly recommend Chen Immigration to everyone thinking about Green Card. They are extremely professional, honest, very organized, and top-notch work. The result says it all!