Foreign owned LLC with no US related income. Which tax forms to fill?

This is not an immigration question. I suggest that you seek the help of an accountant.

I agree with my colleague. Your mother will need a petition + waiver of inadmissibility.

What are the rules for GC holders living abroad?

He must not stay out of the US for more than a year unless he has a reentry permit. I strongly suggest that your friend contacts an experienced...

Mr. Ferrari is correct.

My colleagues are correct.

Why is the renew of my green card is taking over 6 months/

I don't see any deportability issues from your facts. Just be patient.

Green Card Holder Mom to visit family in USA

She will have to prove nonimmigrant intent and come with a visitors visa. ---------------------------------------- This email was sent by: ...

I have an approved GC on my name waiting in queue at US Consulate in my home country. I want to visit my family in US on B2 visa

You will have to wait until your immigrant visa is approved. You lack the nonimmigrant intent requirement for a B-2...

Advance Parole and stay outside US

What is your immigration status? ---------------------------------------- This email was sent by: Avvo, Inc. 1501 4th AveSuite 1900 ...

How long does it usually take to cancel an I-130 form?

That withdrawal letter should suffice. Avoid any more headaches and hire an experienced immigration...