I need some insights on the blueprint of an app.

Concept: The app will be for a specific profession, let’s say lawyers, where they can find all the necessary documents they need for specific cases. These documents are mostly government-issued.

Layout: The layout will be a simple list of different categories. Pressing a category will take the user to another list with different cases. There will be a search bar on top and maybe filters. Think of the settings app on your phone.

Question: What is the optimal way to build this?

Should the “solutions” be links to the documents? Pictures or screenshots? PDFs? Or maybe written/image guides on how to use the documents?

Any ideas are welcome. Additionally, if you know of similar apps (not necessarily about a profession) that have the same idea, please share them.