You can sue the friend for the financial harm.

This would not void a note though you might have a separate lawsuit against them.

You may have defenses but dismissal might not occur. Consult with experienced debt collection defense attorneys in the state where this occurred.

If it was taxed when it was first garnished you should not have to pay taxes a second time.

You cannot. Your remedy is to sue.

It sounds as if you are permanently uncollectible. File the answer on a fee waiver and show the opposing side you are uncollectible.

This may be a scam. Whenever one is unsure, give no information, demand proof in writing (do not give your address or other information), and do...

Use the Avvo search tool to find an attorney. https://www.avvo.com/find-a-lawyer

You can apply the tools of collection such as wage garnishment, bank levies, real property liens, debtor exams, etc.

This might be a scam. Whenever one is unsure, give no information, demand proof in writing (do not give your address or other...