Without a doubt, Chen Attorneys are fantastic. Working with them is a charm because you know that they will take care of the case with utmost detail. I got a job offer from a firm who wanted me to join within a month and was willing to sponsor O1A visa for me. I put Chen lawyers in touch with my future employer who helped them understand the intricacies of the visa approval process. This conversation with my employer, who was doing this type of visa for the first time, calmed their nerves. The lawyers took over the responsibility right away and drafted the petition draft in less than 7 days. Although I was a bit wary, Chen attorneys were convinced that I wont need more than 2 letters of recommendation for this case as they considered my credentials were quite strong. We filed the petition under premium processing and got it approved in 8 calendar days. If you want a hassle free professional immigration firm, look no further. This firm is the best.