We discussed each of our concerns, hers we're more about getting the owner a small nest egg, and I was looking to meet my cash flow (quad chart) criteria.

I think in the commercial world you can depreciate things based on some chart that lists how long something is "supposed" to last. 

Then if those numbers all come out for what they want for the property and gives you a nice profit on the whole deal then offer them some cash.You can set up a table for the areas near your investment area, This would give you a quick go to chart. 

Here is the mortgage interest rate chart.

If the deed was good yesterday, it is the same deed today--the lender is getting PRECISELY the same title they had yesterday, last week, and last year.  

Not sure about growth but your chart is very misleading.

To be precise, the Pennsylvania sheriff's sale wipes out the lien but doesn't destroy the right to redemption.

The area where the property line is roughly located seems fairly obvious, but I want to know more precisely its location.

Each individual house is broken down into a chart of accounts as per Real Estate Accounting guru Amanda Hann.

Google search charts and graphs on home values in your area.