As another poster mentioned rates are lower than they've been in the previous 18+ months but unless some very surprising economic data comes out between now and when you did your refi it seems unlikely that rates are going up in the short term and there is at least a decent chance that rates drop a little more before then. 

You can't beat the price, either, or the interest rate on deposits.

If their interest rate is 4% on those, then they are “making” the equivalent rate of return (4%) as the DST scenario you outlined above.

I did market analysis to find the right rental rate.

When it's sold it will be taxed as capital gains tax and may also have some unrecaptured depreciation which is capped at 25% and  recaptured depreciation as well which can be up to your ordinary income tax rate.

(They should teach kids things like this in all schools--but they don't.)https://www.youtube.com/watch?

Higher interest rates on conventional loans may result, as the government backing currently helps keep rates low.

Market fundamentals to consider: population growth, average income, median home price and average rent, crime rate.

The refi, worth current rates will severely inhibit your cash flow. 

I was looking at procuring the flooring from Costco for around $2/sqft and having a local installer put it in, but I should check HD and Lowe's to see what the comparable rates would be.