Yes, you probably can file. But for $8,000.00, you have to question whether it is worth it. Can you try to negotiate the debt down? Can you get a part time job and pay it off in a year? Make sure you consider your options.
Plus, are you offering to pay the attorney for his time in helping with this suit? I understand that your bankruptcy was probably a flat fee, but this is different. Litigation defense is generally hourly, and generally several hundred dollars/hour. The attorney won't want to work for free.