Will I be able to qualify for a green card if I marry my boyfriend even though I did NOT go through inspection?

Yes but you will need to apply for a waiver as well.

I had green card interview last month but no decision yet?

You must wait 120 days and if no decision comes you can file a service request.

I want to ask that my aunt applied f4 visa for my father . ?

You may be covered by the CSP Act but it is a complicated calculation and its best to contact an immigration attorney.

What?

Yes you can after having your green card for three years if you are still married.

?

Most likely because the I-130 has been granted.

You can also do a service request online as ask that the errors are fixed.

Read the instructions to the form for suggested secondary evidence.

What is considered as an undue hardship to qualify for Travel Ban 3.0 waiver ?

Waivers are hard to get approved, it is very important to hire an attorney with experience and a high approval rate.

How long does it usually take to receive the acknowledgement of receipt of I-589?

Possibly, it usually takes about 30 days.

I-539 question

You must keep your F1 while you pursue a change of status.