Also, the only market I know is limited to the segment of properties we’ve targeted for 15+ years in Las Vegas.

It's a monthly educational real estate event, and they have a 15-minute networking segment.

Real estate professionals working for buyers in this segment are often frustrated after working on a deal only to get outbid by better offers (overnight)—usually above list price.

What if you bought a portion of the building at a time, rehabbed it, rented it, go back to the owners and buy another segment?

His video here is a nice demo on how to use it and showcases some of its built in features like how to download and export lists and utilizing options for segmenting or targeting off market deals with varying degrees/types of motivation. from personal use I know you can also create and send out mailers directly to those lists he shows you how to make.A lot of your needs regarding contacting and documenting conversations sound very much like a CRM, which you could pair with Remine Pro to get all your bases covered.

@Ashley Chris have accounts for each segment business and personal.

If you've done it for a while, you should be able to diagram a work flow n even stages for that workflow detailing all the parties to interact with as well as a decision type chart and timeframe for each segment, right?

I'm open to various commercial RE segments for diversification and would evaluate each on merit.  

It isnt going to be any better with other properties in this segment of the market. 

For commercial roofing there are pre-sloped foam segments that will put a very slight pitch on the flat roof to allow better drainage as well as creating an insulated system.