I am a simple man and I have a few simple questions.

[Kathryn41 3,205]

There shouldn't be any reason why she would have problems re-entering the US on your schedule. Her green card is still valid. While she has conditional status and needs to file for removal of condition, many permanent residents who have 10 year cards also have expiry dates. Their status doesn't expire even if their card does, so most border authorities are going to check that the card is still valid - not whether it is a 2 year card or a 10 year card. As long as the card is valid, her status is valid - unless he has been out of the country for more than a year without a re-entry permit in which case she may be questioned. Since that is not even a possibility in your circumstances, she should run into no problems re-entering the US after your holidays.

Have the ROC package ready to go before you leave, and then file it when you return. You will still be in that 90 day window and you won't have to worry about missing a biometrics appointment while you are away. Many people have travelled out of the country on their 2 year green card. Your wife will be fine. Please reassure her and her family that as long as her green card is still valid when she returns, she will be allowed back in the United States.

[jjbandero 39]

I've traveled several times with my 2-year card, there were never any issues. I also traveled using an expired card and my extension letter, also no issue. I've had some silly experiences at the POE and also with my NOA1 (I ended up receiving two of them), you can read my past posts, but never had an issue with the traveling part.

Occasionally, when you're traveling with the extension letter, and you encounter inexperienced airline staff, they may ask you some questions, in which case, I just asked to speak to a supervisor and it's all fine. I also second the suggestion to be prepared and file immediately after you return, while you can reschedule an appointment, why go through the hassle? I've not had any good experiences dealing with any of the immigration related departments (they were not rude, just never efficient).

Best of luck.