If I file Form I-131 to get a reentry permit while I am in the United States, will USCIS deny the Form I-131 if I leave the United States while the form is still pending?
Form I-131 should be filed while you are in the United States. However, you do not have to be in the United States for USCIS to approve your Form I-131 and issue a reentry permit to you if your biometrics have been obtained. You can indicate on your Form I-131 that you want USCIS to send your reentry permit to a U.S. Embassy, or consulate, or a DHS office overseas, so you can pick it up from one of those facilities.