If I'm interested in paying an expert to look at the settlement cost estimates and find areas where I might be getting screwed, or could negotiate to save on cl

If I'm interested in paying an expert to look at the settlement cost estimates and find areas where I might be getting screwed, or could negotiate to save on closing costs, is that a thing? What's the title for a professional human who does what this AI tool says it does? It sounds useful, I'd just rather pay a person for this service.