One major red flag that ghostwriting services are not legit is a lack of transparent communication about writers, processes, or pricing. If a company guarantees instant results or unrealistic bestseller promises, it often signals dishonesty. Poor grammar, copied content, or vague portfolio samples also indicate low-quality or fake services. Legit providers clearly outline contracts, ownership rights, and confidentiality, while shady ones avoid written agreements. Finally, negative reviews, no verifiable online presence, or pressure to pay upfront without milestones are strong warning signs to watch out for.