Good faith marriage to a US Citizen might be the quickest and best option. Thisnis because you are not in legal status and havent been wince the...

More info is needed. How long did it take USCIS to adjudicate the I-130? Meaning what is priority date and date of approval?

Filing will be rejected and sent back eventually. Needs to be re-submitted. Better to pay by separate checks for each application.

Your case was received in February and they take about a year. You can check status and processing times at www.uscis.gov

Your fact pattern brings ip issues. Did immigration know they were separated when they approved her? Have they gotten a divorce?

DS -260 should be completed as soon as fees procesaed. At same time civil documenrs and financial documents should be done. Case wont be in line...

First time out after change approved you need to stip at embassy for visa. Then you can go back on forth on school vacations.

Yes - i assume you indicated in application a foreign address to notify you when approved for pick up at Embassy.

The combo card that says “can be used as I-512 document” at bottom of combo card front is what you use with passport

Yes - immediately fill out an State Department Public inquiry form and scan a copy of the marriage certificate and ask that she be added to case.