What can be done for retaining EBB category with new employer ?

Attorney Kaira is correct. I agree.

Do you have to have you green card in hand to apply for citizenship?

Yes. Or a PD report that you lost it. You can apply for a citizenship in this case too. However, if you file I-90 you have to wate until it is...

Status of L1 when H1B is approved ?

Whichever is approved second traps the one approved first.

L1 to H1B

Contacting that company's immigration counsel and asking this quesiton. They pay the guy why to go here on a public forum into a tedious...

H1 - Transfer ( after 6th year ) new Dates are they same as Current H1 ?

Yes. I hope you have a good lawyer to fight the MTR

405, you should look online.

Can I ( green card holder ) travel to Mexico with a misdemeanor case pending ?

You can but if they find you inadmissible they will put you in removal proceedings upon return.

Relation between International student and DOS ( designated school official ) for contacting NEVIS purposes ?

DSO is not an attorney unless they found an unemployed attorney and cannot act in a capacity of a legal counsel

Recently my nephew was arrested by NH county police for being illegal that being his only crime how long can they hold him?

Long time really. Hire an immigration attorney. I just got a client out of immigration detention. He stays there 13 months, when I was hired. Took...

Am I eligible for EB1?

no