How long does it take to get the visa once married to a US citizen?

If you file for adjustment of status through marriage to a USC in good faith, the process will take a year, possibly more. Best to work with an...

Refer to your green card for residence since date.

Wife's legal status when submitting N-400?

You only are required to answer status of spouse, not provide of this in application.

Best to refile with the I864 and at current, the I944 is required.

What are the consequences of staying outside US for 9 months on citizenship eligibility?

You will have reset the clock” for purposes of application so best to wait 4 years and 1 day from date of return before applying.

A review of her criminal history must be done for such evaluation.

Can spouse of GreenCard holder apply for citizenship?

Yes a LPR spouse may petition for his/her spouse.

Canceling the application for citizenship?

You can withdraw the N400 application and if you will be divorcing, request a waiver of the joint filing for the I751.

What is the current situation with alien relatives applications?

It means that the case has been received and is under review.

Best to consult with an attorney privately to prepare for interview & types of questions asked.