Originally Posted by
idliman
Q1. Typically 2 to 3 months. But now we are in unprecedented territory with October rush. I believe I485J will fall into I485 processing time which is upward of 12 months. I don't think you are going to do a service request for at least one more year.
Q2. The first time you submit I485J, it is just a confirmation of Bona Fide job (in good faith) offer. After 180 days, you can use I485J for portability to another employer. So both I485J's have their own purpose. 180 days is not a free ticket to I485. Lets say if USCIS picks up your original I485 and new I485J after 180 days, if they find something seriously wrong with original I485 (e.g., health, criminal, security, public charge or immigration violation, etc.,) they can reject the complete AOS application. So you are out of the woods only after I485 is properly adjudicated or pre-adjudicated.
Hope this helps.