However, when it is true for such a wide range of years why would it not continue to be true going forward if using a long duration?

I was considering EDDM and might later - it does cast a wide net

  $55K isn't a ton of money in the commercial realm but in my opinion its still too much for this particular income stream.PS- If you can build out a 30 or 40 foot wide building, your price per square foot for the building will drop substantially.  

One in DFW, DFW Hard Money Lender (not sure if they lend nation-wide), and one in Houston, Zues Mortgage (they do hard money nation-wide).

Conventusfrom my persona experience all of them have corted me to bring them loans as a broker. my net is not wide enough you have to wade through a lot of borrowers to find ones that are loan worthy and realistic.  

I can make the obvious assumption that many of them have seen the guru ads who make it sound like shooting fish in a barrel and believe it will be an easy way to become an investor without money.As illustrated many times before from a wide range of experienced investors the path to a successful wholesale business requires a good amount of capital to spend on marketing which most newbies do not account for. 

If the market turns and you have to cut rents a bit, and/or rent to lower class tenants, at least the laminate materials will last.As for HVAC, this will vary widely by the contractor, but a fellow investor I know just put a central air system in a house that didn't previously have central air, it cost $15.5k.

So many events have an agent, newbie, or wide focus.

I don't have a measurement on the windows, but they are probably 2.5' wide and 5' tall, and they are a single sliding window.  

Real estate is a very wide sector, figure out what area you want to focus in on and become an expert!