180+ days of u-n-a-u-t-h-o-r-i-z-e-d work SINCE YOUR LAST LAWFUL ENTRY in US makes you i-n-e-l-i-g-i-b-l-e- to file for G-C through employment based (F1 to H1 to GC) - if you re-enter US you reset your 180 days clock. 180 days clock rule applies to employment based GC applicants - asylee or married to US citizen candidates are EXEMPT from this. a away around is to get h-1 S-T-A-M-P and re-enter US ... i've not DONE that either. Anyone in same situation? do they go back all the way to F1 n OPT n H1 history r do thay only checccccck H1 period