This will be area specific. 

In hindsight I probably should have gotten an additional HVAC-specific inspection and tested the measurements for the actual washer/dryer space.

On a positive note we did build a new house to the specifications of a specific tenant. 

My dude, this was the most fantastically detailed response!

As both an investor and a mortgage broker who has personally used both options, I can say there are benefits to each.It ultimately comes down to comparing the two side by side based on your specific situation.

Yes, had to go in more detail with my answer. $5400 comes with too much risk and wear and tear on the property. 

You can carve into the details a bit more with a specific broker and products.

An investor is going to want to have a specific date they can get their money out of the deal. 

I've consistently written about the forces of nature and her current and future effects on the real estate market (even while often being ridiculed and politicized on this very site for it) regardless: I personally moved and invested in coastal Oregon in 2018 from Venice Beach Los Angeles partly as a result of the trajectory of climate and have assisted several clients that specifically purchased on the Oregon Coast for their own 'climate havens,' investment and future retirement homes. 

That isn't written somewhere specifically that way, but your lender will ask why you would move your primary from (for example) a 2,000 SF SFR to a 750 SF unit in a four plex?