Do i need to update address if I have two year conditional greencard?

Yes. There is a new link http://www.uscis.gov/forms/change-address-information

How would I go about getting custody of my son back?

You need to file a motion with juvenile court . You need to show change in circumstance, which means child's not yours.

You can file form I 131 Application for travel document if you need a passport to enter Cambodia .

Can my friend go to DO and marry his girlfriend and petition for her when they have not seen each other in person in 4 years?

Should be no problem.

What is the best advice for someone that went to the US Citizenship interview and had a denial letter based on lack of evidence?

It is unclear what kind of evidence he was missing. He needs to retain an attorney who will help him with his paperwork and guide him through...

I have a temporary 2 year green card. my marriage isn't working out. can i get deported before the 2 years are up?

You green card will be automatically cancelled if you won't file a petition to remove condition. Your green card is still good even if you have...

Question on us citizenship

You need to discuss his situation with immigration lawyer who can examine his criminal records. Look up local attorneys. Lots of attorney will...

Is affidavit really required

There are lots of different ways to proof the bona fide marriage like joint assets, insurance policies, time spent together . The petitioner has...

Question on H1B denial decision

It means that you visa petition was denied and you will see the explanation. Discuss your case with the company lawyer.

Are tax transcripts obtained in person from the IRS office good enough for AOS interview?

Yes.