I’m on the board of a small camp in Crofton, NE (near Yankton SD) (~120 beds, 80k budget) and we have had insurance policy adjustments in policy and costs for last 4-5 yrs.

So $100/unit decreasing in inflation adjusted dollars with time and a property loosing value in inflation adjusted dollars.  

We do not drain our hot tub after every guest, but we do test and adjust the chemicals, vacuum it (sand) and skim the top if needed after every guest. 

Many listings are adjusting their asking price at least once while on the market.

maybe message other lists and ask if they have any cleaners they would recommend.Also see if there are any local FB groups where people share this info.I hope you manually checked the numbers and aren't depending solely on Airdna data which can be inaccurate. 

I'm an investor and I'm looking for the best possible risk-adjusted returns so you and other readers might have the same objectives.I'm only interested in STRs for maximum profitability and because the other strategies generally aren't worth it.

Naturally we push the limit to the point that the Housing Specialist might request a small adjustment to meet the calculations. 

Then, there is an adjustment for the tenant's income and finally an adjustment for the area Fair Market Rent.

But a free market will adjust it.  

You can check the documentation, permit info, warranty etc. or often there is an owner’s manual inside the home and also a plaque on or near the inverter or one of the switch boxes with the company name and contact info.