I currently lose about $150/month on it and while that seems bad, my tenants have been paying down over $8000/year in principal on the unit and I'm able to depreciate the value of the unit and my paper losses against my other, better performing rental properties, so while it's not ideal, it's not a complete loser.

If I really have to choose, will choose compounding rate of return.That said, I will measure my success based on what I know at the time of purchase (Termed is as "Skill-Based PnL", Profit and Loss).Like @J Scott and many others said, you can't really predict the future.  

A loss of asset value is merely a paper loss unless you have to sell.  

Its like me paying for you to go to a weight loss clinic. 

A judgement, attorney fees, loss of assets owned now or in the future can be alot of $.

If likely , do you expect to see a meaningful or massive increase in property taxes to make up for loss in state revenue? 

The appraiser will use market rents to determine a square footage price and then measure for square footage to determine valuation.Most lenders will require some sort of a profit and loss or at the very least an operating income statement to actually underwrite it. 

I took a 50.00 a month loss.

The banks puff to try and show stabilized so they get a higher price and take less of a loss.

If the lender feels a loss will be 15-20% on foreclosure rates will be lower than if they could reach 40%.