Hi Jimmy. Congratulations! Purchasing a home in Little Egg Harbor that requires flood insurance, you surely do need an elevation certificate. It should be on the survey, which you or your attorney must have ordered. Check with the surveyor to see if they included it, if not call them back and say you need it. They have all this information at hand, and that informarion determines the price of your flood insurance.
You can call the prior homeowners Flood Insurance Co, thats not a problem, but check out a few other local companies as well to do a comparison. Good luck!