An immigrant wants to marry a US citizen, but he has a criminal record. Is there any possibility to help her become legal?

His prior convictions do not affect her eligibility as a spouse of a US citizen. But why does she want to marry this person?

How long will it take for me to receive information from NVC? and when can I start filling Affidavit of Support?

It depends on your priority date. Usually it happens just before your priority date becomes current. I also agree with Carl Shusterman' s answer.

Can my husband apply for American visa after leaving violating is parole and leaving the country

He will not get the visa and he will be subject to arrest.

Do i have to send tax return for the last five years in order to apply for citizenship n400 even if i am divorce?

No you dont have to send last 5 years tax returns with your naturalization application. Follow instructions to N400 .

Is there any way I can apply for my nephew directly?

There are no options under Family based immigration for this time other than what you already know . however there are other options which are not...

What is the legal implication of the moving to a different address? Do I need to communicate USCIS about this move?

You should always keep USCIS upto date on your address. It is not only wise it is also legally required.

How can I help a minor on a student visa with an insurance company refusing to pay medical bills?

This is not an IMMIGRATION LAW question. This is insurance law question. In any case, correct venue would be to contact an attorney to sue the...

Will it affect their chance to get the greencard? Do they need to include me as their children in the DS-260 form?

The fact that you over stayed does not affect their case. You are over 21 so you are not a dependant or minor to be included as a beneficiary. But...

In these circumstances can I apply for a better spouse case and if yes what will be the success rate.

As a battered spouse you may file an immigrant visa petition under the Immigration and Nationality Act (INA), as amended by the Violence Against...

VAWA confidentiality requirements are taken very seriously by USCIS. Congress not only clarified its intention to recommend that removal...