Legal Question in Civil Litigation in Illinois

Unless you took a lien against the car title, the most you have is a broken promise to pay. This would mean a simple lawsuit, small claims, with filing fees, etc. if you did it pro se, and additional fees if you win and she still doesn't pay, to garnish, etc.

But there are facts you have not given that could be crucial to your case. You say you sold it for $3,300, but you do not state what if any paperwork you have to verify that's the agreed price, or what the terms were (as is, etc.). You don't even say whether the $2,200 was "payment on account" that would lead a person to believe more was to be paid. If you can't prove the price was more than what you already got, you've given up title on a "verbal" (oral promise) and if she says the price was $2,200, what do you have to prove it was more?

And if you get a judgment and she doesn't have the money at that time, you would file a general judgment lien against her name -- then not only do you ding her credit rating but if she ever tries to get credit it should show up with a credit check and she may be denied credit unless she comes clean with you. It can take years, and after a period of time they go stale and you have to "renew" them through a new lawsuit. And if she moves out of state, well, that's yet another possibility.

In the end without an attorney you can easily spend $500 chasing the $1,100 to judgment and maybe event partial collection. And that does include a bit of your own time to go to court, etc.

You will ahve to file small claims and prove your case. Assuming that you do, you can start post judgment proceedings and may be able to obtain a turn over order for the car or any other asset that she may have, assuming that she does not have exemptions available to her. Good luck