Bank fees also matter, the #1 retail mortgage bank in the country advertises rates with about 2 points in junk fees ($10k in extra fees on a $500k loan on top of normal closing costs). 

Perhaps you pay for materials, but pay them for their labor afterwards, once you are satisfied with the work.But if you are hiring a GC for a $50k rehab, then you can expect to pay in several tranches, say 6 x $8k with $2k upon final punch list completion, or something along those lines. 

It is being advertised for a development project. 

I have found that when you do your own work efficiently and/or your own contracting, the money you save from being attentive, knowing the true costs, and being ready to do what needs to be done yourself, if need be(or because you enjoy the type of work) is easily enough to cover improved materials.

I'd just advertise the price and then if they want help with financing go into the details you want, but let them work on a lower monthly payment.

I see that open houses are a common way to advertise the property and find a potential tenant-buyer.

The time and effort you will spend managing, especially during the first few years when you're learning the ropes and all of your state's land lord/tenant laws and best rental practices (advertising, showing, screening, writing a lease, scheduling maintenance visits, etc.) would make your time more profitable to simply spend working at Wal-Mart as a greeter

Besides cleaning, and platform advertising expenses are they any other expenses unique to the vrbo strategy to take into consideration?

They incurred expenses from: buying boxes and packaging materials, renting a Uhaul truck as well as utility disconnect fees.

Also the treads are 84.5 inches long.. which creates a material issue if I don't carpet.