If I drop my U.S. Citizenship and then decide I want it back. How difficult will that be if my wife still has her U.S. Citizensh

Also check on the tax consequences of renouncing your U.S. citizenship. Obviously if you can avoid this it would be best. If your wife is a U.S....

So i130 takes less then 6months then right ?

It depends on what category the I-130 is in -- see posted processing times at each Service Center on the USCIS website.

By attaching the I-20 form of new school to the I-539 application makes the process faster?

it is required an will not affect processing times.

I entered U.S with a F1 visa when I already have a H1B active. Will this conflict result in troubles?

You are in F-1 status and cannot work on the H-1B without either leaving and obtaining an H-1B visa or re-applying for a change of status to H-1B.

You cannot adjust your status from withholding of removal. However, if you entered the US lawfully, and you married a US citizen, you can seek a...

Upgrade from L1B to L1A recently approved. L1B visa expires 12/18.Portugal passport.When/where need new visa stamp?VIW possible?

you do not need a visa if tear-off I-94 given to you until the first time you leave the U.S. When you say AOS do you mean change of status or...

call the airlines and ask without using your name if a Mexico passport is sufficient ID for boarding a flight to Hawaii.

as long as you are still in nonimmigrant status then you may file to extend status here; otherwise you can petition here but won't be eligible for...

The tax category is married filing separately under your facts. You are not single until the marriage is terminated.

Who possession should the children passports be in?. Custodial parent or non custodial. What should I do?

You need to get a family law attorney to have the Court aware of what is happening and modify orders if necessary