Changing the Visa status from F-2 to F-1 while F-2 to H-2 is in process

I do agree with my colleague, she can apply for f1 now

Little bit complicated, need to talk with attorney.

You are fine just be patient and wait.

Can US Green Card Holder applies for illegal spouse who is living in Canada without papers and passport ? Please advice

Very long process, it is complicated, a FOIA will need to be done to see her record.

Can I sue this restaurant? Or demand free food?

Based on the facts that you provided in you post, I don't see any basis for a lawsuit. Maybe other missing facts in your post might shed more light.

I am applying for a green card i-485

Just put N/A

If I am scheduled for an IME for on the job injury this Thursday, is it too late to retain a lawyer?

No, it is not too late.

Affidavit of support question

Depends, if they are combining their incomes then file I-1864A. Best thing to do to is let an attorney review them for you after you file, to be safe.

Dual citizenship. Country of last residence is in war. Is asylum possible?

Depending if you feel that you are victim of persecution.

The answer is simply no, your marriage won't affect your naturalization. Congratulations and good luck.