Just got my EB1B I-140 approved through TSA via premium processing. Extremely pleased with Chen Immigration Law Associate. I knew my case was handled in good hands as soon as I started communicating with the law firm in preparing the evidence for my case. The firm offers a comprehensive list of documentations in guiding my preparations for the initial materials for their drafting of recommendation letters and petition letter. Their communication system is organized and efficient, and their correspondences with me are always professional and timely. They've demonstrated great insights into my research field, attention to details in preparing the letters and exhibits, and presented the strongest evidence possible for my case filing. I would recommend their law firm to any of my friends.