Swiffering or residential grade steam mopping (like the inexpensive Shark model) is fine, and really all that is needed. 

What is of importance is their 30,60,90 day pay records, credit limits, percentage of credit used, what type of credit items they are defaulting on etc.

Auxiliary items may be utility bills or other items that prove that someone, most likely yourself, lived there. 

He clearly didn't read either of our posts or he would know that we're not relying on projections for a leverage model to work. 

Still managed to almost lose my hat on the deal just finishing out flooring and a few trim items.  

What Marc wrote about expense risks with old buildings is exactly my concern, and since we will not move into one of the units, the uptown model will not be a fit for us.

What items look the most dated?  

Usually once your company is in the system, it won't take as long to add more units.One of those pamphlets you picked up at the Sect 8 office should have a list of all the items the inspectors look for when they do their inspections.  

I can buy a 16x50 front porch model with upgraded features, including insulation, for about 18 K delivered and set it for about 2k, bringing my cost to around 20K.

Enjoy the fruits of your labor today, exit as the market is high and demand is high, reinvent your strategy, turnkey as a lifestyle is something you will soon be able to capture, seems that you may be leaning in this direction fairly strong.You need to calculate your risk and rewards, you time saved, your ability to maximize your current exposure and define if the risk model is greater or lesser.