Can I switch from a B2 to a TN-1 after a month in US?

It is usually cheaper and faster to exit US and apply for TN at the border.

Why does a supervisor needs to review my fiance visa case at NVC? How long this review will take?

It is normal for a supervisor to review a case before forwarding.

How long does the processing of the Green cart thru U-Visa takes?

USCIS is experiencing inordinate delay in U visa processing times 18-24 months.

Can a green card holder file taxes as resident for the year of green card abandonment?

This is a good question for an international tax professional.

How long it takes to process green card petition if US citizens spouse is in india?....is it the same time for k1 and k3petition

It takes about 12 months to process marriage based green card petition for US citizen and spouse in india. It is about the same time for k3petition

Does having too many visas affect chance of getting a new Visa?

Each visa application stands on it own merits. Many visa applicants have multiple visas.

What should I do if I'm traveling while I have an expired I-551 with an I-751 receipt extension?

A person with an expired conditional I-551 card may travel with a timely filed I-751 receipt notice. The person may also make an infopass and...

Do i enter an old (abandoned) A number into I-485 I-130 forms or leave blank when I apply for a green card.

A person with an old, even abandoned, A# should enter the number on the forms when now applying.

How long does it take to get a green card marriage interview letter?

USCIS San Francisco District Office has a huge backlog and cases have been taking 8-9 months.

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Does the application for I-485 Adjustment of Status require a valid Visa to be stamped?

Adjustment of status requires a valid admission into the US and maintenance of status. A visa is required for admission in a status. A visa need...