Thank you, regarding I 539, would it be a good idea to file it then since it will be replied to in 6 month. So in case the AOS is rejected I can exit even before I 539 is replied to and in this case I would be in better situation if I come back for a visit - Showing that I applied for visa extension? or AOS application would serve same purpose even if it was rejected, and I left as soon as it is rejected?