Why hire an editor?
Maybe:
You know your manuscript isn't ready for publication, but you're not sure what it needs to get to that point.
A reader or publisher has suggested you hire a professional for "line editing"---someone who can help you reach a wider audience.
You want to increase the chances your work will be accepted for publication quickly.
You're starting a new project and would find it helpful to have your own personal editor or writing coach to help you keep to a schedule and provide regular feedback.
You want to experiment with a different writing style than you've used in the past and want feedback before sending to colleagues or publishers.
You’re in the final stages of submitting your book manuscript and want to make sure it’s as polished as possible and conforms to all the publisher’s guidelines.
When I work on a manuscript, I keep the author's individual needs in mind.