Hey Gail! My name's Kasey and I'm a 17 year old writer who's working on a superhero story. Everything is coming together nicely. What advice would you give me if I wanted to have my superhero published and be apart of DC, or Marvel, Dark Horse,etc?

You have to start somewhere else first. Marvel and DC don’t take unsolicited material, and I’m not sure of Dark Horse’s policy but I suspect it’s similar.

Get your work published in a smaller press first, or some other form, whether it’s webcomics or mini-comics or whatever. They want to see that you can finish something and have it turn out compelling and professional. 

Good luck!