If you already have a preliminary site layout showing the size and quantity of buildings you can put on the lot, you should be able to take that work on some budget construction costs and from there work your possible rents into the equation to see if what you have drawn makes sense cost wise, or if there is a more efficient way to lay the site out and reduce costs. 

You’ve made good steps to value quality over quantity, but you don’t have clarity on which market and which asset class.

In my opinion, it's all based on quality or quantity.

As the problem gets worse every year, I imagine it's only a matter of time that quantities become so big that it's going to become unmanageable.

I obviously want to be careful, but at the same time, gut says I can get more than the meager comps show (both in quantity and value).Anyone out there facing this type of issue? 

The key is to build your portfolio slowly but consistently, focusing on quality over quantity. shervinrealtor.com

Quality over quantity.

Put together your entire order (as much as you can) for your rehab, including the lowes part numbers and item quantities, and give it to your Pro-Desk rep.

Each one you own gives you some quantity of positive cash flow, plus tax write offs, plus mortgage pay-down / equity gain.  

It allows hosts to list all items in their property and update quantities as needed.Properly: Properly is known for its cleaning and property management features, but it also includes inventory tracking capabilities.