We looked at a large number of buildings in the area, and was surprised that maybe 1% of the information you need to assess board/management competence is available online. Generally we'd have to do our own DD talking to people in the buildings.
IMO it makes a huge difference, >10% of the purchase price should be on the quality of the board and management.
Seems like a startup opportunity to be Yelp for Condo Boards/HOAs. (I'm sure there are a dozen+, of course. I haven't done the DD on that!)