H4 EAD eligibilty for AC21 act

You may be able to get a H4 EAD, talk to an immigration attorney to help you with this process. All the best.

Affidavit of support

It is better to get a new recent one. If they need more proof they will let you know. All the best.

H1b cap exemption approved but date is from Dec. 2015 to dec2018. Can I work? Am I in status?

If the date is Dec 2015 to Dec 2018, then you will have to wait. All the best.

I have recently received F1 visa, but few days ago consulate canceled without prejudice. Because my parents live in the USA.

F1 and B1 visas are non immigrant visas, meaning you will leave the united states after the period of your visa. Now to answer your question...

It is better to have the EAD card with you before you start working. All the best.

I'm a green card holder. My girlfriend lives in Europe. What are my options for bringing her to the US to live with me?

At this point your green card status will not help her in anyway. She will have to file for a visa herself and come here to stay with you. After...

Completing 5 Years on L1B VISA in Sept 2015. Can I change the status from L1 B to F1 (Student VISA) now

Yes you can begin the process before your L1B expires. All the best.

I am Completing 5 years on my L1 B VISA on Spet 2015. Can I change the status from L1 B to F1 (Student VISA)

Yes you can change your status from L1B to F1 through COS. All the best.

I have a question regrading F1 student visa to F4 immigration visa process

If you are a derived beneficiary you will most likely have to be alongside your mom. But you should consult with an immigration attorney to see if...

I was approved for a deffered action and a permission to travel to my native country...

Yes you will be entering legally, make sure you take the AP papers with you. You can not apply for residency unless you have someone who is willing...