Permit searches

I work out of Miami Dade County in Florida. I was wondering how most of you do your permit searches and verifications as in reference to home inspections and wind mitigation‘s?

For instance, a person said they installed a new roof I have no contractor licenses or contracts or permits how would I find the permit numbers or install dates.

I’m in an issue right now with a person has a preconstruction home and they said they have a secondary water resistance but obviously it’s concealed so I’m having an issue finding if it’s the appropriate layer to have further credits