After the 2nd "failed" interview (assuming for not passing civic or English), the case will be denied. She would have to apply for naturalization...

Hello, my hi-b visa got denied , currently I am on OPT period , Can I apply for J1 visa ?

It's feasible if you are still in F1/OPT. Good luck with finding a J-1 sponsor.

Is there a change in the pay structure if I am working on a business visa or a regular H1/H4 EAD?

I don't know what you meant by "business' visa," but you cannot work and get paid while you are on B1/B2. H1B won't be available until next year...

Can I continue working on H4 EAD while my EAD extension is pending? (The current EAD card expired)

The answer is NO. Wait for EAD approval.

Power of Attorney for US Citizen for Indian Citizen

That depends on what you are trying to achieve on your wife's behalf with this "power of attorney." This may not be an immigration question.

It depends on why you were arrested in the first place. Did you get a pretrial intervention (diversion) after being arrested for DUI? Maybe for...

I came to unitedstates from india on f1 visa, after completion of two sems,i went to vacation,my visa revoked at port of entry

Try to contact the school (DSO) and see if the school is willing to work with you (again) by reissuing I-20. If the school is will to do that, the...

How can I get permission/visa/green card for my sister ?

A regular sibling petition would take too long for your sister with special need. You should consult with an immigration attorney to see if she...

Is a final order of removal that is older than 10 years pose a bar to reentry?

It really depends on how he/she was given the removal order, when he/she left the country (if at all) after the order, if he/she...

Naturalization interview

Unless you have a child together, try to cover all over the 3-year period with various types of evidence. Besides what you mentioned, you could do...