Can a person who currently has a I-30 petition for alien in process enter the u.s during this process?

There may be issues concerning "nonimmigrant intent" but it really depends on things we don't know such as who the petitioner and beneficiary are,...

Unfortunately, the chances are nil since you were employed without authorization. Reinstatement is specifically not allowed in this situation.

No, you cannot do that. But you can simply file your spouse and file the AOS if the waiver receives a favorable recommendation from DOS. Doesn't...

When I can apply for the citizenship while I was outside USA most of the time for 1st year after I landed & received Green Card?

For the three years immediately before you file for naturalization, you must have been in the US for at least 19 months of the 36 months/three...

You should at least consult with a Board Certified Immigration Attorney. Also, attorneys should not answer specific questions for malpractice...

Can i get my H1B transfer petition processed in premium if my job roles and responsibilities are same and within 30 miles ?

The distance you are referring to has no relevance to an H-1 transfer.

What is the minimum wage requirement for H1B in Dallas county? ?

The prevailing wage depends on the job description and requirements. It is impossible to make that determination without that extra information. ...

For the H1B purpose, along with credential evaluation should we provide expert opinion letter while applying fresh petition ?

It is a way to try to prevent a denial. It is a good idea if for some reason the attorney cannot prove the position is a "specialty occupation"...

How can i bring my two sisters in law from El, Salvador to the United States?

It will take about ten years, the same time as this question was asked before.

Can I fly from Austin texas to El Salvador with El Salvador passsaport?

That is all you need to go to El Salvador: a passport from El Salvador.