Yes, this is a manageable situation. Vehicles that were purchased or previously registered in another state can be sold in Illinois as long as you can demonstrate ownership. The out-of-state title is the primary document that establishes this. If you have the title from the other state in your name, the sale can generally proceed.
Some sellers in this situation are concerned about whether they need to re-register the vehicle in Illinois before selling. In most cases, selling an out-of-state titled vehicle directly to EZ Cash Cars is possible without first obtaining an Illinois registration. EZ Cash Cars handles the title transfer and can advise on what specific documentation is needed for your particular out-of-state title situation.
If you have lost the out-of-state title, you would typically need to contact the DMV or Secretary of State equivalent in the state where the vehicle was originally titled to request a duplicate. EZ Cash Cars can walk you through how to approach this if it applies to your situation.