STATE: GEORGIA

General contractor didnt provide a proof of insurance and licence. He signed a document stating he is licensed and insured. The document included the price of work to be performed in the house. After chasing him and trying to get proofs of insurance and licensing, he couldnt prove neither, I was forced to throw him out.
He filed a lawsuit of damages and claims I didnt pay him in full, although work was never completed. What are advantages/disadvantages for either party?