Yes, even once you have created your passive income machine, it still needs some attention. Just like a car, it needs to be maintained. Granted you won’t need to spend 40+ hours a week on it, but spending a few hours a week or even a month will still be necessary to manage your business. Continue to watch your cash flow, reinvest some of it in your business, and enjoy the rest! Managing your business will help you keep the passive income machine running.
Try going to our post: 20 Sites That Will Pay You to Read Books: https://wellkeptwallet.com/get-paid-to-read-books/. Even though editing is not what this post is about, there are several companies that might do book editing such as Kirkus: https://www.kirkusreviews.com/editing-services/get-started/marketing/?utm_source=google&utm_medium=cpc&utm_term=%2Bbook%20%2Bediting&utm_campaign=Editorial-ES I hope this helps and good luck on your book!