I'm proposing that if the seller is willing, we get an appraisal for the market value of the property as is, and then let the owner continue to make mortgage payments while I renovate.

I imagine that they will continue to change names and alter their marketing strategy, so please beware, and do not offer any money up front.

The fact that most of these (almost all) buildings are apartment rentals and not condos for sale, I believe the inventory of condos for sale will still remain low, and will continue to drive the prices up.  

My question is should I continue renting out my house I own or should I sell it and reinvest that money elsewhere???

Should I just continue to buy them in my own name like I have been doing already?

I own 3 SFR rentals and would like to continue growing. 

We could simply hire a manager but we could also just create a "quasi-management" situation where we have someone that is boots on the ground and we continue the "office work" which is fine with me.

In my opinion, any savings you would obtain from doing anything other than continuing to rent in your current situation is simply cost avoidance.

So the maps will continue to change as weather events happen over time. 

Is it something that one could reasonably expect to continue, or is it temporary?