Removing conditions and pending conviction

[Skip and M 0]

Unfortunately a complicated situation.

My wife came to the states from Canada under a K-1 visa and we were married 28 months ago. About 6 months ago she was accused of a crime that occurred before she left for the states. Without getting into detail, it is a crime that would qualify as one of "moral turpitude" under immigration law. She will most likely be convicted and serve a conditional sentence (yet to be determined). She is eligible to apply for removal of conditions on her green card in April. She will have to detail the nature of her offense and status on her application. It is my understanding that she will receive the one year extension while the I-751 is in process and be able to travel back and forth to Canada (equipped with her passport, green card, and letter). Eventually, we feel it unlikely that deportation proceedings will not be put into motion. Our questions are these:

When do they first review the I-751? Should she still expect a letter of receipt and extension?

Will it be further reviewed prior to an interview?

If removal proceedings are put into place and she has the "letter" will she still be able to travel back and forth, as she has family in Canada( during the one year extension period)?

We know this is a temporary fix and we are in the process of getting an immigration /deportation attorney. Understand that the end game might be my moving to Canada. In any case, answers to the above questions would help us plan and how much time we have.