Developmental Editing helps you fine tune the sequence and the order of your book. Have you presented the information in a format that makes sense to the reader; does each piece of information build upon previous material? If you’ve had a few people read drafts of your book and they’re confused, you need developmental editing. A developmental editor may even be able to help you uncover features in your work that will create a powerful experience for your readers.

If an editor’s rates seem skeptically low, send an editing test, ask for references or a sample, place a hidden message in your post, and see if they understand the different types of editing. If an editor passes all of these tests, even if she’s a newbie, give her a try. This could save you hundreds of dollars and help you find a skilled editor who is competent and affordable.

Hiring a grant writer can give you a competitive edge when applying for financial grants for your business or nonprofit organization, or as an individual. The cost to hire a grant writer can vary depending on their academic background, areas of expertise, previous grant writing success and years of experience. According to the Grant Professionals Association, grant writers should be paid hourly or by flat fee. It is unethical for a grant writer to accept a commission or percentage compensation of grant monies received. They can, however, be awarded bonuses in line with the hiring company’s prevailing practices. Here are some examples of average grant writing fees:

We’ve set up a unique “first chapter critique” service which includes up to 5,000 words (which should actually include 2~3 chapters… or a prologue, preface or intro). This will be an deconstructive developmental edit, pointing out exactly where your weaknesses lie and what you can do to make them better, but will not include a full edit or proofread. We will, however, edit your blurb, bio or query, as long as they fit within the 5K word limit.
In addition to the individual editors listed above, the Reedsy marketplace is full of vetted professional editors for every editing level and genre. They screen their editors and only allow the best of the best to be listed on their website. I'm a BIG fan of them because they have made the process easy for me to find the best book editors, book cover designers, and even writers to help me with my projects.  Talk about awesome!
All points well taken, Derek. (To be fair, Teymour does address the different levels of editing.) I’d add that, as far as the surgeon analogy, even the best editor can’t fix a mediocre story. Some stories are dead on arrival and no amount of resuscitation is going to help. Also, an editor might be able to fix some things, but the “patient” also has a lot of work to do after the operation is done.
I cannot speak for all editors, of course, but I know I and many of us would be open to editing just part of your book at first, say, a particular chapter or two that you sense needs a lot of work. That is often enough to show you mechanical errors that you tend to make repeatedly. You can then go through the entire manuscript yourself looking for as many of the same kind of errors as possible. You will sharpen your basic writing skills in the process, and it will pay off in all future projects.