Gap between B2 Visa Approval Date and Date of First Entry in the USA?

She can use that visa at any time during it's validity period. Note that she is subject to inspection by the Customs & Border Protection Officers...

Can I work remotely on H1b visa ?

If you are outside the U.S., you do not have, and have no need for H-1B status - H-1B status only has to do with your status when in the U.S.

H1b to B1 to H1b ,later for Greencard question

You need to act quickly - regardless of when your company notifies USCIS, you are out of status from the time you stop working for your H-1B...

Premium process for my H1b Application is one of option for me now?

Normal processing of H-1B cap cases is likely to take several months. You can elect to upgrade the petition to premium processing at any time if...

Do I need EAD card to start work or I can use the approval notice to start work

The employer can only accept the actual EAD as proof of your authorization to work.

You can apply for naturalization in any state after you have been resident in that state for 90 days.

Form i-140 for EB2 green card processing

Questions regarding arrests, convictions, etc. do not arise during the I-140 stage - only the I-485 stage and if you apply for a visa from a U.S....

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H1b renewal after i-140 has been filed for EB2 green card

Your employer cannot file an H-1B extension petition more than 6 months before the expiration date of your current H-1B.

Does my wife need to get her fingerprints for immigrant visa?

Fingerprinting is done for individuals applying for permanent residence while in the U.S. In your wife's situation, since she is applying from a...

This is not an immigration issue - but is subject to the gun ownership laws of Florida.