Yes these trips may impact your naturalization application.

You can use the Avvo search tool to find a lawyer that fits your needs.

You will need to file I824 to move the case to NVC.

Yes you must pay the I751 fee as well. Consult with an attorney prior to doing so.

Yes the criminal matter will impact the I751 application.

Yes she may file for her husband but will eventually need to be domiciled in the US.

Yes the 2021 may be used and 2022 may be requested.

It indicates that the case is ready for review.

This is very normal as there are considerable wait times for I751.

Unclear what section you are referring to.