Does it matter if that was theft, natural disaster, tenant caused problem, maintenance issue (like water damage because pipe bursts etc)?

And they should, as the nature of the transaction, and the parties, vary greatly (or that is the assumption). 

Ultimately just pick your market and as things change you'll start seeing the niche area you naturally do better in.

If there are nearby big-boy subs going in sometimes guys I know will go with those agents just to have a ready-made "in", i.e. that agent/agency is already working the subdivision so it's a natural push if they get someone that complains about cookie-cutter.2.

This is just human nature whether you are talking about real estate or not.Another issue is some people have a scarcity mentality and don't want to help their competition.I regularly get asked to mentor people, they offer to help in return for my knowledge.

I like the beauty of the natural brick.

rainwater, irrigation, waterpipe or natural seepage. 

The nature of the building will also dictate your costs -- a 2-story, 2-family home will have a different cost structure than a 16-story high-rise apartment building (which requires a different type of construction, elevators, etc.).

Increased demand and limited supply drives prices upward, thus the seller's market we find ourselves, which is naturally making its way into rentals.Those with assets in play did so based on a plan to build long term wealth. 

A trustee may be a beneficial owner and may be a natural person or a business entity.