“How long will it take?”
This is unfortunately not easy to answer.
Deploying content and changes to displace something negative in Google and Bing is complicated, involving literally thousands of variables, and it typically requires development over a period of time.
One truism of online reputation management is that when a reputation repair project is undertaken, the company or individual that is the subject of the work typically has woefully insufficient web assets and content.
Executives frequently eschew having social media profiles or personal websites, out of the misguided belief that by doing so they are preserving their privacy.
Small to medium-sized businesses often believe they’re not all that affected by their online presence, until something appears that damages them on page one.