User blog comment:DuskSpiral/Developing Post V3 Fanfiction, Feedback Required/@comment-4023909-20171115123531

reminds me of the time I used to do fan story's with a few people. ahh good times.

form experience I would say to stay clear of stuff that could change the cannon. sometimes its better not to not have canon people/places in your story at all. If your set on it then make it that there seen but not interacted with or there just passing by with nothing to do with your story

also dont make your story affect the cannon story. youdhave to make up a new enemy to fight (with out adding anything new like grimm)

but then you need to think up new people that arnt to op... and that can get hard