Only if the wife’s income is needed.

It would be 60 days from last day of employment.

No this should not impact reentry.

No this should not impact future tourist visa application.

Provide past 3 year tax transcripts.

Yes, while your case is pending, this is possible.

Provide a copy of court record and final disposition.

Consult with the Canadian consulate for guidance.

Either blank or N/A should be sufficient.

Either time is okay but a court order is necessary to show legal name change.