Should I file tax though my US citizen working spouse while my case is in immigration court / removal procedure?

I agree with my colleagues: you should consult an immigration attorney regarding all of the details of your situation.

How do we proceed with immigration filling, to enable me visit them in the US at any time while working in my home country.

You would have to divorce your wife in order to re-marry your ex-wife. If you do not intend to live in the US, you would need a non-immigrant visa.

Should i choose withe based on N 400 instruction or leave it blank ?

Yes, follow the instructions but do not leave the question blank. I suggest you have an immigration attorney review the application documents...

Depending on the type of business, yes, a non-citizen can open a business in the US. An investor visa is available for these situations. However,...

How do I fill out an affidavit when the primary sponsor will be someone other than the actual petitioner?

For both your wife and our mother, you and your father must file separate affidavits; while your income may not meet the requirements, you are the...

U visa to green card?

Yes, you are eligible to apply for your green card three (3) years after your U-Visa was issued.

What does this mean can he come back?

This is an Order dismissing the named defendants. I suggest you consult with the attorney who filed this suit to discuss further.

What does this mean? Can he come back now ? his native country). Since Petitioner has already departed the United States, it is

This is a very vague question; much more information is necessary to properly address this question. I suggest you contact an immigration attorney...

RFE notice in the mail for removal of conditions petition

Yes, you must put a stamp on the envelope and your return address information as well.

Immigration advice regarding married to a U. S. Citizen.

Having problems in your marriage does not mean that you cannot go to your interview.