Our PTA are holding a Christmas wreath making course and have found someone via Facebook recommendations to host it. She has photos of a previous event she did and has a Facebook page and Etsy shop but that’s it. We’ve never paid someone external for an event before so I’m wondering how to safeguard ourselves against losing our money or if she didn’t turn up. I’m just wondering if other PTAs create some kind of contract or what they do? We are paying her half the money so she can buy the supplies and then pay her the rest on the day. Help please!