There really is nothing I can say in this bit because each agency and publisher is going to have different guidelines and requirements. My tenth piece of advice is this: have these things proofread ready to go:
- Query Letter
- Two-Page Synopsis
- A list of titles comparative to your book.
I would say the prepare more but there really are things you’ll need to create for certain submissions. Just make sure that these new entries to your toolkit is just as clean as the things you have already written.
What’s more important is to search out the right agents and publishers that are the best for you. A few good websites for this is #MSWL and writer’s digest.