I have a pricing question. Is it a one time fee or yearly? Also, is a commercial publication allowed to use this theme? My publisher is interested.

Hi Becky, 
Thanks for reaching out to us!
– Our themes price is fixed and 1 time fee only, you only need to pay one. As for the benefit: you can get to download the theme as many times as you want and use it on unlimited domains. You will also get our support regarding themes bugs and other related issues. We do not provide customization/ modification support yet.
– You can use our themes for any type of websites, actually. So go ahead. We only don’t allow our themes (both free and premium) to be resold. That’s the only concern. 
Hope my answers are clear for you 🙂
Thanks again!