Would i be able to reapply for a Perm Resident card if i let it expire by being absent from us for 3 or more years

Your spouse would have to petition you all over again, with everything that entails.

Can I sponsor the immigration of a friend of mine from Serbia to the U.S.? He has been living with me ten years with an F1 visa

No there isn't. He would need a parent, spouse or child to petition him, or an employer to petition him. And, if he is out of status in the US, he...

F1 to F2 pending, now want to change again to F1. What to do?

USCIS disfavors piggy backing applications/petitions on a previously filed but not yet adjudicated ones. If you can wait for the approval, you...

How long does it take for a judge to determine to reopen a case if the person is detained?

If you are handling this by yourself, the odds of success are dramatically reduced. If you have an attorney, you should really be discussing your...

What are the chances of an immigration judge denying reopening a previous case if the attorney already agreed to reopen it?

If you are handling this by yourself, the odds of success are dramatically reduced. If you have an attorney, you should really be discussing your...

How long does it take to get an answer to a motion to reopen in immigration court in Seattle Washington?

Why don't you ask your lawyer?

I am a greencard holder, I want to go to Canada for college education

You must get an reentry permit before you leave, or you will run a serious risk of losing your green card.

Does USCIS process fast for those people who are legal in US and apply for GC?

It makes no difference in terms of processing time. The problem you face is visa availability, as you fall in the F2A category, which is...

The L-1 only authorizes work with the company that filed for the L-1. In order to work for company Y you need to either have an EAD, or company Y...

Adoption

If you are over 16, the adoption will NOT get you any immigration benefits. That means you would still have to be an international student, and you...