FOIA could not find copy of Naturalization Papers

No, you appear legal. Immigration just wants you to pay them money to replace the lost certificate.

The other attorneys are correct. If he entered without papers, he will need to leave the US to get his greencard.

OPT to H1B stamping - Canada

Talk to your immigration attorney. You may not need to leave the US.

If I divorce or seperate from husband, will it affect my naturalization in future.

Talk to BOTH a family lawyer and an immigration lawyer. Most likely you have a conditional greencard and need to do things carefully.

Several cases of disorderly conduct and immigration.

I agree with the other attorney. Consult with an immigration attorney before you file.

Advice on writting an extreme hardship letter I-601

As the other attorney stated, these are very complex documents and must be customized for each case. Talk to an attorney.

Do I get in trouble for working withouth authorization and I will apply for a greencard through marriage (us citizen)?

You will be forgiven. But, your employer could get into trouble for letting you work without a valid permit.

Who will receive copies of highly sensitive documents provided to the immigration attorney for co-sponsorship?

They will be given to immigration and you will be obliged to financially guarantee that your friend, or family member, will not try to get welfare...

L1A to H1B transfer for filing GC in EB2 Category

You are proposing a very complicated visa-juggling-act. I strongly suggest that you talk to an attorney.

Thats what i wont to find out

Yes, there are free lawyers in most cities. If immigration put a hold on him they will give him a list of free legal service providers. Or, you...