Ohio

My daughter, Emerson, is 7 years old, she has a severe tree nut allergy that has made it difficult over the years to find sweet treats. Together we created a chocolate chip cookie that is tree nut, peanut, wheat, dairy, egg, soy, and gluten free. We have had a ton of interest and I am trying to grow and make this into a business to help others have access to a safe sweet treat. I know in Ohio we have the cottage law that accepts baked goods. Do we have to still be come licensed? We did purchase insurance for the business. I am looking for some insight on this as we continue to move forward. We are selling them to friends and family currently, and an event at an elementary school coming up in March that has asked us to be part of it. I need to know if we can sell there too.

Thank you in advance, trying to figure all this out!