Crazy Cat

I would not stay for the full time allowed.  Short visits are better. If CBP even thinks the OP is trying to live in the US on VWP, some very negative consequences can occur.  

Your Green Card will be taken away.....but NOT your passport.  I'm not sure why they would want to see it.  Make sure you take a black ink pen and the questionnaire as required by the instructions on the letter.  Congratulations!!

I have seen cases where a copy worked.  I have seen cases where it didn't work.  However, the official Carrier information guide says the original extension letter must accompany the expired Green Card:
 
Carrier Information Guide- English (cbp.gov)
 

I-90 extension letter

Foreign passport is a property of a foreign government and won't be taken away. Maybe it's for confirming any foreign trips between the interview and oath.

Your Green Card will be taken away.....but NOT your passport.  I'm not sure why they would want to see it.  Make sure you take a black ink pen and the questionnaire as required by the instructions on the letter.  Congratulations!!

Your Green Card will be taken away.....but NOT your passport.  I'm not sure why they would want to see it.  Make sure you take a black ink pen and the questionnaire as required by the instructions on the letter.  Congratulations!!

It usually takes 4-6 weeks after delivery to receive extension letter, so you're looking into mid May.
Also, don't forget, USCIS had tons of people applying before April 1st to lock in old fees and they're probably overwhelmed dealing with influx of petitions. It's totally normal.

With what extension letter was she using to board before?

Do you have physical watermarked extension letter? The first issue you may face is airline not accepting the printout and denying boarding. Some were lucky to board with copy but it's more of an exception than rule.

This is only meant as a gentle jab, but strap in cause it's a long ride in general.
If you get used to waiting, using the down times to research the next steps and collecting documentation, you'll be able to keep your sanity through it. Best of luck!

You will need I-864 for each of them and sealed I-693 Medical Exam
 

No, that is not the case for petition processing.  I-129fs go to the California Service Center while I-130s go to a particular service center based on USCIS workload and internal processes.  They are not assigned based on geographical locations.

I would not stay for the full time allowed.  Short visits are better. If CBP even thinks the OP is trying to live in the US on VWP, some very negative consequences can occur.  

No issues.

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April 22, 2024 Oath Ceremony Notice Was Mailed
5/8/24 8am Oath.

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Wait, you're planning to lie about visiting for only 2 weeks then turn around and stay for 5-6 months, lying that you have a job (which you're going to quit before you depart) and you're wondering what? What could possibly go wrong ... 
 
 

I thought everything was digital now, I had film which I duly brought and basically it is a souvenir, chucked it a few moves ago.