How I can sponsor my wife to be?

You need to speak with a lawyer BEFORE you get married to review the options.

I'm a us citizen married for 18 years my wife was in brasil brasil for 3 years and lost her green card?

Since you've already exhausted all options, you are probably going to have to start over with an I-130. Hire a lawyer now so you prevent further...

Iam I allowed to apply for Humanitarian Visa?

You are allowed to apply. but that does not mean you will be approved. You should discuss it with a lawyer before doing anything.

Can my R1 status remain valid if not paid salary for sometime?

No. You are out of status. YOu will need a new R1 visa in the future when a new facility is available. IF you want to preserve your ability to...

Marriage certificate

It may be nothing. IT may be serious. It could lead USCIS to question the honesty on the application or where he was living at the time (if he was...

You need to actually consult with an immigration lawyer. This forum is not sufficient.

Does USCIS conduct background check for N400 application only in US or also in original country of citizenship of the applicant?

You should discuss this with a lawyer to determine if, and how, this needs to be disclosed.

Do I enter divorced or married in US Citizenship application form N400? Need advise from family/divorce lawyer.

The U.S. cares about US law. you may want to review your situation with a lawyer.

Can cops take your stuff even if you have receipts that show they were purchased legally?

They should not take anything they do not have probable cause to believe is stolen. So the next step for you as it relates to that property is how...

I-485 interview canceled even though no interview was scheduled?

No one can tell you based on the information provided. Internet status updates are notoriously full of mistakes. Consult with a lawyer.