It may be a small delay for CIS to fix their mistake. There should be no mistake if you request it now, before they send you the card.

There is no harm trying. It could affect one's adjustment if the applicant works without permission.

Speak with your accountant. There is no rule against you filing a joint return.

It could be anywhere from a day to several years. Follow up every sixty days or so.

There is no waiver of the requirement to meet in person.

There is no requirement to be in the U.S., to graduate from a U.S. school, or to file within six months of graduation to qualify for a National...

The issue is that AOS EAD is not actually the name of any immigration status. If you wish to adjust, many recommend continuing your H1b. But it...

It seems to me that it is not authorized. It may constitute unauthorized employment.

Your gross income on the pay stub is what they will examine.

It is faster now than it was before the pandemic if you are filing to adjust status in the U.S.