If you did and this was not contained in the report, then you have two possibilities:1) If it is something the building inspector should have caught (you will need your contractor / roofer) to provide you with a professional opinion, then it may be deemed an error/omission by your inspector (he has insurance for this);2) If it can be demonstrated that the seller intentionally camouflaged the defect such that the building inspector could not have been expected to discover the issue [remember the inspector is conducting a visual inspection and is not permitted to open walls, etc. ... though they are expected to enter the attic space and examine the underside of the roof], then you "may" have recourse to the seller.

Were you able to gain access to the property interior to do a visual inspection or just pics on-line?

The new trend with everything is small amounts of data and lots of visuals.

I work for a visual-first communication app with a specialization in the trades that include agents, property managers, contractors etc.

Only difference is be ready to make reasonable accomidations if asked.If you think you can charge a higher deposit for someone who is visually impaired because you feel they will not clean properly, you are most likely violating a law.... a federal one at that.

The macros run with VBA (Visual Basic for Applications).  

Tenant is responsible for all other yard care to maintain compliance with city and state ordinances and to protect the visual appearance of the property.

The  main thing we do is drive by and do a quick visual check. 

Daniel,Property managers are not licensed inspectors, but visually look over the property to note deficiencies.

This includes such features as emphasis, vocabulary, dialect, and even such distinctions as whether a person is speaking primarily in visual representations ("I see what you mean"), auditory representations ("I hear what you're saying"), or kinesthetic representations ("I feel where you're coming from").