Can a us citizen stay more than four years in a country before coming back?

A U,S. citizen is free to be out of the U.S. as long as she wants without consequence to her citizenship.

Citizenship requirement regarding stay in one state before filing N-400

Drivers' license or lease or other bills. Doesn't mean you need to be there every day just that is has been your residence for the previous three...

Does spouse need another medical exam/vaccination for Green Card interview if already done during K-1 visa application?

She does not need a new medical just reference that medical was completed overseas prior to K-1 interview.

What should an American father do?

If the child is in the UK you should consult a UK family law attorney.

Absolutely this is possible and we have done it many times provided both companies have been in existence for at least a year and you are otherwise...

I am a us citizen I married my boyfriend of 13 years we have a son together how long will it take for him to get his papers?

it depends whether he is in or out of the U.S.? Was he deported or voluntarily returned? Did he leave the U.S. after accruing unlawful presence...

Unlikely to be the university as the reason for visa rejection. More likely the consulate either doesn't see you as qualified or you haven't...

Pending Case

yes it will if the I-751 was filed as joint filing and will now need to be a self-petition with waiver and divorce decree.

Will a Domestic Violence Temporary Restraining Order affect ability to get i601a approved??

As long as there is no criminal arrest or conviction there should not be an issue affecting his immigration case.

EB1C Current Date or Visa Bulltetin to apply from L1A to GC?

There are two stages to the EB-1C -- the I-140 and the I-485. If the Priority Date is current both can be filed together. If you are risk averse...