Yes (but not SSI).
The State's Attorney/District Attorney or your State's child support agency can do this.
absolutely
Rather difficult as they are in cash, but they can use them as calculated income for setting support. see links
No
no
No, child support cannot attach or garnish a 401K plan. They can only garnish wages earned and not employee benefits.
Yes.
yes
yes
Yes... No matter where you move to, Child Support will find you!!!
Collection bureaus can obtain court orders to garnish wages for debts unrelated to child support, even if those wages are also being garnished for child support.
Depends on the nature of the underlying debt. If it's for taxes, penalties, fines, or child support, likely yes.