on Just Publishing Advice:
For most self-publishing authors, the answer is probably no.
The cost of developmental editing, copy editing and line editing are all very expensive. In a traditional publishing house, professional editors and proofreaders are part of a lengthy and costly book production process.
For independent authors, you can hire a freelance editor. But these editors who work on an hourly rate don’t come cheap either.
Any form of professional editing will cost you a lot of money. But editing books is essential before publishing. So, what can you do to prepare a clean manuscript?