Working while switching from F-1/OPT to marriage-based permanent residency.

You should consider retaining an immigration attorney to handle your family-based green card application. If you receive your new EAD before your...

Maybe. You should consult with an immigration attorney. You need case specific legal advise, and you may have that only during a private...

Does a Non-US citizen can apply Brazil and Argentina Tourist Visa in US?

Call the Brazilian and Argentinian Consulate nearest to where you live in the US and ask them about the procedure and requirements.

Moved several times after getting greencard. Never changed my address.

You can change your address by filing AR-11 on USCIS' website. Here is the link: online change of address. As a green card holder, you are required...

Is staying in US legal after VISA and I94 expires and Visa Extension Receipt (EAC) generated?

You may want to talk to your employer's immigration attorney. In general, if a non-frivolous H-1B extension petition was timely filed, the H-1B...

Question regarding cap-exemption for approved H1-B petitions 2014

Yes, you are right. Cap H-1B visa must be "activated" to be considered "counted." You must apply for the H-1B visa, be admitted in H-1B status, or...

Do we have to pay both $1070 & $420 when concurrently file I-130 & I-1485?

Yes, both fees must be paid (total: $1490). Yes, it may be expensive, but then you may obtain a green card. Best wishes.

Can I continue working on valid L2 EAD while H1 amendment is in progress? Effect on L2 EAD in case of amendment denial.

If your L2 status is still valid, you may continue working on your EAD. You can continue working on it until you have a valid L-2 status and the...

You should contact NVC and request correction. You may want to consider hiring an immigration attorney to handle the correction for you if you are...

I am filing I-485 based on marriage with US citizen. Can my brother who is a US citizen file I-864 for me?

Your wife is the Petitioner/Sponsor in your green card application. She must submit I-864. If her income does not meet the required minimum, then...