You might hire someone for a proofread, but let the editor know that you’re open to hearing from him or her if the work needs a heavier edit. The editor would need to present you with evidence in the form of sample pages that showcase what’s needed—and your job is to make sure you agree. You want to feel like an editor’s edits are polishing your work and making it shine. If you feel dread or anger, or even if you feel misunderstood, it’s likely not a good fit. At the very least you want to share your reactions with the editor so they can respond or change course.
I have over 18 years of experience writing about, researching, and analyzing complex public policy, historical, political, and international affairs subjects ranging from UN peacekeeping to ancient Rome and my work is regularly published online by a variety of websites. Published in Newsweek, the Modern War Institute at West Point, Mic, The Jerusalem Post, The Jordan Times, and other publications.
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Call or write to the publishing company the editor works for to see if you can talk to them. You may be able to reach an editor directly by asking to speak with them at work. Send a formal letter or place a friendly call asking to speak with the editor. Ensure that you’re able to articulate why you want to speak with them ahead of time by practicing the conversation.
It’s always sensible to follow due diligence in submitting your first draft of your book to an editor by making as fool-proof a copy as possible for you because first, it is your own creation, and secondly, a horrid draft sent your editor can end up frustrating both you and him or her. Make your own corrections to the extent you can, so that will make the job of your editor that much lighter and the end result would be a lot more effective.