To answer your question about whether you should get an attorney, it's probably a no. Yes, an attorney can help you understand your rights, and if you are right, can help develop and represent your position...
But it will cost you a ton more than $190. I understand that principle may be involved and that you don't want to just give someone money, but practically speaking, hiring an attorney will be more expensive and create more stress than just paying this person to go away.
As to whether the sub has any rights because it is not licensed, this will depend on whether the sub was required to have a license. It sounds like it was, but I can't be sure without a better understanding of the facts.
My Mechanics Lien Filing Service at www.zlien.com. Our number is 866-720-5436. Avvo's terms and conditions apply, answers on Avvo are general responses to hypothetical scenarios presented by questioner.
In Georgia, roofers are not required to hold a state contractor's license for a standard roofing job. But if we assume for a moment that the scope of work was sufficient (e.g. structure changes) to require a state contractor's license, any subs working for a state licensed contractors are not required to be licensed unless they fall under Chap 14 (HVAC, electrical, plumbing, low voltage). Further inspections by county inspectors are not an assurance that any construction job is done according to contract and are merely spot checking for basic code compliance. I assume the lien is for the $190 plus the $2800. A legal action is still needed to perfect the lien and I would expect the contractor to follow up with a magistrate's court action. You may want to review the matter with legal counsel to determine your rights and remedies before this escalates further and, if appropriate , to prepare a defense and possibly a counterclaim if there are code violations or other contract issues.
Disclosure: This answer and any information contained in this answer is not intended to be treated as legal advice. It is for informational purposes to educate about legal issues. You should contact an attorney for specific legal advice for your situation. Specific legal advice based on full knowledge of your specific situation and all facts may differ from general information. This posting does not create an attorney-client relationship or privilege of any kind. This attorney actively licensed only in the State of Georgia. If this is a Georgia matter, you may of course contact me to discuss possible representation. FEEDBACK: Both AVVO and other readers are interested in your feedback on the quality of the answers. Please check the “thumbs up” symbol if you find an answer helpful.
I would recommend that you speak with a licensed GA attorney. Many attorneys offer a free consultations where they can fully evaluate the complaint, your situation and goals. This should also give you a better scope of the issues and cost associated with these items