What should I check before choosing ghostwriting services in USA?

[cecilamoore]

I'm researching ghostwriting services in USA for a book idea, but I want to make the right decision before moving forward. Has anyone here worked with ghostwriting services in USA? What should I look for besides writing quality, and what mistakes should I avoid? I'm interested in honest, experience-based suggestions about communication, contracts, and the overall process. Your genuine advice would be greatly appreciated.