My other 10 SFH most of which were purchased though turnkey providers tend to stand by their product more than JWB. 

With the exception of 1 bedroom units, you basically have 2 options:-Oversized/commercial machines (potentially multiple sets)-Off site cleaning with clean spares on siteThe latter is almost always the most efficient and basically what hotels do at scale.

That said there are some nuances and requirements to property implement interest tracing so ensure you talk to your tax professional ahead of time and keep the funds movement as clean as possible. 

I have found that in many STRs we have stayed at, they aren't cleaned well and look scummy or even mildewed. 

They have to keep nose clean, there now in the system, tax's and all regular everything.

There are separate loan products for construction of an ADU (checkout Derek @ThatADUGuy on Instagram) to learn more.

What I'm planning: buy and hold the property, brush and clean it up with intent to hold until cost of funds drops a little in 4-6 months.

There are thousands of lenders and tens of thousands of loan products.

He recommended we do some work to move the outflow from nearby downspouts further away and then clean/reseal the interior wall.

On 1/2 price days I spend $250 and get nice clean clothes only with retail value of around $2,000.