Definitely not an all inclusive list of a deep clean, but as you noted, a clean place is exactly what guests want.

In CA they use an instrument called an "all inclusive Deed of Trust" to accomplish the wrap its a robust debt instrument.

I've never seen that term used in cases where loans between related parties were under dispute.I would be more interested in demonstrating the interest was reasonable based market research, there is evidence of repayment, evidence of any collateral, consistent treatment as a loan on both tax forms, inclusion of interest income for him and interest deductions for you, there were provisions for enforcement of collection on nonpayment, amortization schedule, etc.Remember, it is canon that substance takes precedence to form.

This isn't inclusive but should give you a good start.

I do recommend in the future maybe hiring a local person and paying them maybe 10 % to be the local contact person and handle any in person issues instead of paying an all inclusive PM 25%.

I agree with above regarding inclusion into rent.

Link below https://rehabvaluator.com/upgradeIf you want someone to review your checklist to make sure it is all inclusive of costs, I could be of some help.

Those clients are willing to pay upwards of $5,500 per month for something all inclusive and flexible with move in/out. 

This isn't inclusive but should give you a good start.

When I started college the estimated cost for 4 years from the financial aid office at my university (inclusive of all expenses) was something like $280k.