Gather the available documents
Collect the invoices, warranties and information you have on work done, systems and maintenance.
There is no need to hide anything or present an improvement as certified if you have no supporting document.
Make spaces and systems accessible
Clear access to panels, equipment and spaces that may need to be examined, as far as possible.
Point out known particularities and access limitations so the inspector can record them properly.
Answer with facts
Answer questions based on what you know and the documents available.
For declarations, obligations or technical questions, have the appropriate professional confirm the steps to follow.