I have asked the same question to my lawyer and for some reason he has told me that you can not stay more than 60 days out of US on AP. (EB-3 Category) I do not know which answer is correct since i see here that someone said you can stay outta US as long as ur AP is valid. Please help me here giving some insight as I must have to stay in India for more than 60 days for extreme medical condition of my spouse and if I can not do this, I may wind up everything here, leave my green card process incomplete and go back for ever cos i knw tht coming back in 2 months is nearly impossible for me. ANy help would be greately appriciated. Thanks.