Here are delinquency rates for consumer loans (blue) and mortgages (red) with debt to disposable income thrown in for good measure. 

I would probably add a garbage disposal to prevent clogged sink and would go with durable granite/quartz to prevent wear and tear.

In addition, the units have washer/dryer, disposal, covered carports, and the biggest amenity for my target renter demographic, a yard for animals.

When you replace the roof, you dispose of the old roof, and start depreciating the new roof.

This includes cash flow, apperciation, and all expenses ranging from garbage disposals to new roofs. 

., etc.Yes, a new foundation (among other things) is required.There is a very real cost to the developer in tearing down and disposing of the existing house (tipping fees can add up to a tidy sum).  

If the tenant abandons the dwelling unit as described in subsection (e) hereof, or fails to remove his personal property from the premises after termination of a rental agreement, the landlord shall leave the property in the dwelling unit or remove and store all abandoned property from the dwelling unit and may dispose of the property after seven days.

Way to use all the resources at your disposal to get into the REI game!   

I can answer the “knock down” portion...I was quoted $10,000 to knock down a 3500 square foot wood-frame house and dispose of the materials.  

The best ones have all of the basic rehab type people available for your disposal.