My i-485 was assigned to immigration officer.

Was your adjustment based on family or employment or something elase? When did you initially file it? it can take several months or so from filing...

Does it mean that my file is already in NVC? I check at https://ceac.state.gov and it said my file is at AT NVC. Thanks a lot.

Yes, your file is with NVC. Make sure you follow the instructions closely as not to delay the processing of your case.

What documents should i require to apply immigration visa for my wife ?

I agree with my colleague regarding documents. But speak with an immigration attorney regarding the process.

Filing form i-130

Put the home country. When the priority date becomes current you can always inform USCIS that you are adjusting here in the U.S. if you are here...

Can we adopt while on the working visa?

You should speak with a Family law attorney regarding this issue.

Can i submit green card forms at the same time when I submit mines?

Definitely, speak with an immigration attorney to aid you in this process for your husband as qualifying family member of a U-visa holder.

How long can a Canadian citizen stay in the United States before they have to go back to Canada?

If they are traveling by plane, customs will stamp his passport with specific time to which his visit will expire. They can give him up to 6...

Speak with an experienced immigration attorney. They can explain to you if there are any options available to you and your boyfriend at this time.

What I need to do?

I definitely think you should consult with an immigration attorney about your case. When you are called for second interview USCIS is questioning...

Will I

There is a good chance that you and your husband will be interviewed especially if the marriage occurred while in removal proceedings. You should...