In my opinion, the short answer is to use your cash and refinance it into a 'standard' loan if you are going to rent it or sell it when you are done. 

We’re wondering if these fees and processes are standard for short-term rentals.

Simplify as many standard processes such as online rent payment, leases, apartment turns, paint, and other materials, and re-key all locks to a master system.

I'd like to find out what a somewhat standard practice out there looks like.

Talk to your preferred lenders about whether they see a cash our re-fi as being approved with the same standards as an investment, i.e. loan to value, debt coverage ratio, etc.

Our vacation rental is international and 99% is AirBNB

To maintain your current standard of living, your rental income must increase faster than inflation.

You may also have to get your "hands dirty" in order to make these properties look nice or up to your standards. 

Two wage earners are going to have an easier time making rent than a family where there is only one paycheck, depending on how high such paychecks are, and in both cases you would look at the total household income.Stick to your guns on what you said you wanted, but when you are not in the heat of the situation reevaluate your standards to make sure they are still serving you well. 

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