MAVNI/K-3

These are very specific questions and you need the guidance of a private consultation with an immigration attorney who understands how the MAVNI...

You would not be allowed to do so. You need specific work authorization from USCIS.

What is going to happen to Daca?

If you are a DACA recipient and need to renew the DACA you can still do so. The matter that was pending before the supreme court does not impact...

H1b transfer got denied. How long can I stay in US? Can I apply H1b via new employer? Do I need to goto India for stamping ?

Please talk with the company's immigration counsel. There is no additional grace period for staying.

I would work with the transferring company's immigration counsel on this.

How to switch from a VWP to H1

I would talk to the immigration counsel for the company sponsoring you. You would need to leave when your authorized stay is over.

Can a f1 visa student get a fingeprint for licensing/employment? Is this will be a ground for rejection if he/she will apply for

We need more information. What type of employment or licensing are you referring to?

Joint sponsor I-864

You and your joint sponsor have to complete I864 forms individually. I suggest working with a qualified immigration attorney to have the forms...

Can I submit an application for my brother in Guatemala even if my mother has already put in an application?

Yes you can certainly petition for him now.

How do I prove I didn't know about selective service?

I would work with an immigration attorney on this matter. You can provide an affidavit that you were not aware. You can also register now if eligible.