My thinking is that what you are already paying her is the lowest amount it should cost for her time it takes to clean up after a guest that stays a night or two, so why should she charge you less if that is what you are already paying. 

., well I guess you need to ask yourself is it less work to clean up after guests in the off season than high season?

That you wisely build in the costs for replacement linens and towels (also offer black face towels), possibly don't use high-end top-down shades in the Bunk Room (although those black out shades match all the shades in the rest of the house and it's a high-end property), chalk can be brushed, semi-gloss on walls for easier clean-up... and yes, there are clear check-out directions to run the dishwasher provided via an online guest book, a physical guest book, and an email I send regarding check-out the day before they check-out.

Those numbers don't work unless you will clean up on appreciation which for new build, especially in a development, takes much longer.

It is so much easier for your tax professional to set you up correctly from the start then to clean up.  

I'll still occasionally let customers do this if I'm feeling nice, but now I let them know ahead of time (and have a clause in my contract) that if something goes awry with their materials and/or subs, it's on them to clean up the mess.

He came to me and said it's currently occupied and would make a great clean-up and with "only some minor fix-up and a vacant home we could resell around $100k." 

That's just it, though - the inventory is so depleted there's no way the higher prices make up for the lack of inventory.

I mainly did clean up and prep for the contractors to save a little time and money, as well as some painting and sealing.

I am sure plenty have tried to DIY it  Indeed plenty have tried to DIY it..... and then accounting firms like us are left to clean up the mess!