I agree with all of the fixes being cheap and easy (except for potentially the moisture), but am I the only one confused by this:"- No air filter and nowhere to place one on HVAC"What does this mean? 

Are you just looking at their calendar on Air BnB?

Property is well kept; Added refrigerated air replacing the swam cooling system that was there when I purchased it.

I use my CC get my cash rewards/ air miles run them up during projects to conserve cash incase I find the next deal.

Take into account: bedroom and bathroom counts, square footage of the unit, whether parking is included, whether laundry in in-unit or not or nonexistent, central air vs. window units vs. nothing, and the general condition and age of the interior.Good luck!

The comparable on Air BnB are few, but seem to be renting around $65-85/night.

For MTRs I do not use air bnb. so no I have not.

Our original strategy included St John as a lifestyle air bnb play while working remotely and living summer to summer.

Depreciation can be applied not only to the property but also to fixtures, such as air conditioners, so if those fixtures are also new, the tax savings can be even greater.On the other hand, used property does not provide the same tax savings as new property because many years have passed since it was built, so it's useful life may be less, or in some cases, almost zero.

I remodeled her bathroom, upgraded her kitchen a little and added central air and other things.