You may have the right to a defense of the lawsuit under your insurance policy. You should have the policy reviewed by a lawyer. You may also have claims against the RE agent even without a written agreement.
I agree with Mr. von Beck and the agent may have some ethical issues with the Department of Licensing. It sounds as if there is more to the story here. You should gather all of your paperwork at once and hire a lawyer and file a claim with your insurance company and demand they defend you.
Only If and until you and I sign an Agreement for Legal Services, I am not your attorney. These answers are provided for informational and/or novelty purposes