yes
yup
Yep
yup
IRAs can be seized for child support. I suggest that you contact your State's child support agency. When you get an interview with them, bring all the papers relating to your child support: birth certificates, acknowledgments of paternity, court orders, payment records, etc. Be polite but persistent. Good luck!
In Illinois, yes, even if the child support obligor transfers his IRA into a new spouse's name. See Takata v Hafley at http://www.state.il.us/court/Opinions/AppellateCourt/2008/3rdDistrict/June/3070175.pdf
The State can place a lien on an IRA to collect child support arrearages, yes.
No. The asset to be seized must be owned by the obligor (either solely or jointly).
yes
No, the are protected by the courts.
For arrears, yes. see links below
Ira Sachs was born in 1965, in Memphis, Tennessee, USA.
yup