Legal Question in Real Estate Law in Georgia

You have legal and practical issues. One, you are past the statute of limitations for most contract and tort and injury claims. To get past that, you would have to prove knowledge and concealment - not as easy as you might think. Did the homeowner install the plastic or even know about it? Then you have to get past the terms of your real estate contract. Given the extremely difficult case, your legal fees for a lawsuit will be thousands. What are your total damages? Does the old owner have money? Many lawyers will write a demand letter for you for a few hundred dollars (or contingency) to see what happens, but the old owner's lawyer will go through this same process. I don't see a qualified lawyer being interested in the case on a contingency, but you can certainly speak with a few.

8 years after the fact is probably barred by a statute of limitations, but even if you find your way around that, you'll need to figure out how to prove the owner did it or knew, probably get around language that bars such claims in your purchase contract, hire and pay experts to testify, etc., and in the unlikely event you can do all that, find the sellers and if you win, find assets of theirs to collect from. You'd likely incure thousands if not tens of thousands in legal fees. So the answer is see a lawyer just in case, but your odds seem weak.