This is essentially the inverse of how big banks are using commercial AI tools for document entity extraction and analysis. For example, https://cloud.google.com/solutions/lending-doc-ai?hl=en

I can see why this could be useful, but I also think it might be overkill compared to just an explanatory doc a homebuyer could reference that explains each section of their estimate. It also opens the developer to loads of potential risk in handling personal financial data.