You should obtain a reentry permit before leaving. This would allow you to remain outside the US for up to two years.

IF it is your biological father, it seems you are a US citizen and can apply for a passport. YOu also need to apply for a certificate of citizenship.

There is information on the court's website about completing an expungement or you can hire a lawyer to do it for you.

No. You cannot apply for a passport. You cannot get a us passport until you become a us citizen.

That's an interesting scenario. It's impossible to say how a judge will react without knowing who the judge is and all the other details, but there...

This really depends on the facts, the timing, and other issues. There is no way you will accomplish this without an excellent attorney. Start by...

YOu did not receive an approval. You received a receipt of filing. An I-824 may take 1-2 years. If you are describing your case accurately, you can...

You should hire a lawyer to help you through this complicated and confusing process before you make a mistake that will have serious long term...

I agree with Mr. Chielo's answer. You are eligible four years after the date your green card was issued.

Your DACA is irrelevant to your ability to become a legal resident (and later citizen). Your marriage is important, but more information is needed....