I-751
 

We are in UK and need to file I-751 before GC expiry on September 27th. As we can't go back to the US yet I was thinking of mailing the forms from the UK directly to USCIS. Or would it better to send to a friend in the US and have them send them to USCIS?

We are looking to go back around the second week of August so I could wait until we are in then but I worried about leaving it too long.

Also, is it likely my wife will have to go to a biometrics appointment even if she already did that on the initial adjustment of status application?

Thanks in advance!

Re: I-751
 

She will, with 100% certainty, have to attend biometrics. She'll have to do it again when she files her N400 too. It's just part of the process for FBI background checks and confirmation that the person that is making the application is the person that applied for the original visa/AOS.

As long as USCIS receive the forms, it really doesn't matter if it comes from the UK or from the US.

I don't see why you don't just wait until you return, it's going to take 18 months anyway.

Re: I-751
 

The regulations specifically allow filing from abroad. Also, an expired I-551 is deemed to be unexpired provided holder is returning within one year of departure (although the departure airport people may have problems with that one.)