If your priority date goes on/after the date for your country of nationality in the Final Action Dates Chart then you won't wait too long

It depends on where you live: https://www.uscis.gov/i-539-addresses

You should request to convert the application to a waiver of joint filing once the divorce decree is granted. You also need to present evidence...

If you apply for change of status before your F1 expires then you will not be illegally staying.

If the marriage has been less than 2 years, the stepchild gets a conditional green card.

The sponsor's annual income must meet 125% of the federal poverty guidelines for your household size of 2 people.

I suggest you submit a USCIS inquiry indicating that the case is outside normal processing times.

Your duty to work for the petitioning employer starts upon receiving your green card so I don't think that your situation, per se, would be a...

The beneficiary and not the petitioner should establish that he/she would not be a public charge to the US government.

For the naturalization application, you must continue to be the spouse of the U.S. citizen up until the time you tak the oath of allegiance so if...