A lot depends on what happened to the former owner, and if they died, are there any heirs who might want to make waves. 

I decided to take action this year and have already made some waves in the pool.

Congrats on riding the appreciation wave to where you’ve got options!!

The stairs don't bounce, the treads aren't pulling from the wall stringer, the handrails and newel posts aren't waving around when you put your hand on them, the whole house doesn't shake when one apartment door is shut.I've been very shy of buying someone else's renovation work in 100 year old buildings, especially if it's from a  flipper. 

DO NOT use WAVE.

She always comes to the door and waves at me as i leave for work and it kills me that I have to leave for work and not get to spend time with her. 

Perhaps they are the wave of the future, but in our circumstance they weren't right for the following reasons 1) the cost would have been about double of what we've paid for traditional forced air systems; 2) it would have required too much unsightly hardware and line sets all over the outside of the building; 3)they are designed for better insulated construction than this era of building provides. - We decided not to replace the existing boilers with high efficiency modulating condensing boilers.  

Maybe I need to wave around some cash. :-)  I have been trying to develop relationships with a few agents too, but perhaps I need to work harder on that angle.

I always do it just like if a normal client but I wave my project management fee and i get paid when the house sells,  I don't do rentals, I hate everything about the rental business

I totally agree with all the traits you listed, especially the point you made about the highs and lows (they do come in waves!)