Interview was scheduled i485?

You should receive a notice within 4-6 weeks.

How can I apply for Green Card with J2 visa?

The best thing for you to do would be to sit with an experienced immigration attorney to explore your options as it can't be done in this forum.

Fastest way to move from F1 to H4/H4 EAD

There is no fast track to obtain H4 EAD. It takes anywhere from 6-8 months.

How can an illegal minor in the USA get a greencard?

Yes, she does have few options that we can explore, certainly SIJ can be an option for which we need more facts. Abeer Amin, Esq. @ abeeraminlaw.com

Can I sponsor my spouse if i am a permanent resident ?

Yes you can, but at this time there is a waiting period for like two Years until spouses of green card holder are able to adjust;so it's better to...

Apply green card when I am on F1-STEM OPT

Yes, it's completely legal for the employer to apply green card while you are on your OPT. Please note, the PERM process takes about 1.5-2 years to...

Would withdrawing from the H1B petition affect my current OPT status?

Your OPT will not be impacted in the sense that you will still be able to work for another company on the time remaining on your OPT. OPT is not to...

There are various factors that are determine the prevailing wage such as, SOC Code, your job title, your duties, specific geographic location, etc....

Could I go back home without immigration final response ?

If your travel while your application is in process, it will be considered abandoned. So you can travel but your application will be terminated.

Yes, you can. However, your employer would have to engage in a Labor Certification/PERM process, which is another immigration process for you to be...