Yes it will. Permits are handed out on a county by county basis, and each judge is the issuing officer. I was talking with a pistol safety class instructor last night about my permit denial and he asked if it was because I had a juvenile record that was sealed. He knows people, and so do people on NYFirearms.com that have been denied a permit because they thought their records were sealed as well so they did not disclose their convictions to the judge. A judge can view that as lying on the permit app, and deny right then and there. Other judges may look at it as “well he was young and dumb, no big deal” and approve the application. It is 100% up to the judge on if you get a permit or not. Ask me how I know.