In terms of where to look, i think you have to first determine your goals.

What do you all think of this article? It looks like US will become a Renter Nation. More and more private equity firms are buying thousands of SFHs...American Homes 4 Rent, Blackstone Group, Colony NorthStar, and now...

There are too many variables to determine pricing this way.

If you want to focus on listings, you could target Seniors with Long-Time Ownership (ready to downsize or transition to assistance) or Homeowners with Low Financial Stability Scores.If you want to be a buyer's agent, consider partnering with a mortgage broker to run some first-time home buyer seminars (or meetups).

Have you ran the numbers on both of these scenarios and determined the difference in ROI and cashflow?

I looked up the tax records to see the sale price and there was no change of ownership or record of sale.

I would research your particular materials and construction and determine the likely risk, but I would seriously consider if your tenant is worth spending this kind of money on and what your plan would be for the tenant and project if you actually have a documented case of asbestos, which may require professional mitigation if you think you might have a liability situation with your tenant.  

@Alexander Lang as Brad mentioned, the first step is to first explain what the concern is and whether it causes any issues with TIC or LLC ownership. 

How do you determine if you’re getting good terms on your financing?

First of all, look at how long other properties are taking to sell and then determine if the marketing period has been "too long" or not - not all markets sell the same.