Regarding your first question, it's hard to say but my feeling is yes, that this can sometimes speed up the review and approval of the I-485 application. Regar

Regarding your first question, it's hard to say but my feeling is yes, that this can sometimes speed up the review and approval of the I-485 application. Regarding your second question, there's really no risk to leave right away as long as your green card was obtained in good faith. This is further supported by AC21 which allows the "porting" of green card applications after 6 months.