You should report the lawyer to the appropriate bar association, if he/she in fact forged a signature. But, I am not sure how a denied I-130 would...

Yes, you can refile. You may want to hire an immigration attorney to help you through the process.

I agree that you should make sure that your pending asylum claim was properly withdraw. I would still talk with an experienced immigration...

I would attempt to go to the USCIS office with your medical documentation. They may give you an emergency stamp for that, especially if you have...

What can I do to avoid troubles with my Green Card entering the US if I'm forced to travel 2-3 times during a year abroad?

You likely should file for reentry permit. Based on your situation, you may be able to request an extended reentry permit (usually for two years)....