I am sorry to say that I disagree with Don. Criminal law does not pay well. You will be defending people who steal to get their fix, people who cheat on their taxes, the odd pety thief, repete offenders, etc. This class of people aren't exactly loaded!
Wrongful death and other types of liability suits you're often going after large corperations and insurance companies with deep pockets. That's where the $$$ are.
Forgive the spelling errors
If you are a person of low income, you should immediately contact Illinois Legal Aid, who can provide legal representation for free or at a very reduced cost.
If you do not qualify for legal aid, you can search for legal assistance using the Illinois State Bar Associations Illinois Lawyer Finder. http://www.illinoislawyerfinder.com/
You should first consult with a lawyer who practices in the area of "child custody" before trying to hire a litigator to sue the state. There are likely administrative proceedings that will provide you with an opportunity to demonstrate that the Department of Children and Family Services acted improperly.