I've never used one like this, but I've seen them at the store.Note that all of these need a neutral; they can't be used in a switch loop. 

A GFI w/o ground is not wired properly.The black wire goes to the GOLD screw,  The white wire to the SILVER screw,  and the green wire goes to the GREEN tab on the bottom.Technically:the white is the "neutral" wire and connects in the subpanel as a ground the black connects (some times via a switch aka an overhead light) to the subpanel to a circuit breaker - -black can also connect, unswitched from wall outlet to another outlet and then to the subpanel circuit breakerGROUND/GREEN is common to all outlets and is terminated to the subpanel case.

@Kevin Manz It comes with two CTs that you clamp around the main feeds, and then you land a wire on the neutral bar and a spare breaker.

I switched to a neutral ceramic tile.

While markets are hot these models tend to try to pop up and then when markets try to cycle to neutral or down these models drop off.

Personally I like real estate clubs, since they provide a neutral venue and tend to attract those that are serious in the business.

As long as I am cashflow neutral on the original property, I still enjoy cashflow from my newer properties and have an expanded cashflow footprint.As far as financing, if you find a deal - you can find the financing. 

My question is now that the property is close to being cash flow neutral,  should I sell and take my gains?  

The black light will show the stains.If it is just a small area Petsmart has a black light flashlight that includes a urine neutralizer for like 20 bucks to try. http://www.drsfostersmith.com/product/prod_display.cfm?

It is inspirational to push the style envelope a bit instead of just neutrals!