The best way to do this is to go on VRBO and Air and look at what your competitors are doing in the areas you're considering.

HI Brian,-- Maybe a fresh air leak somewhere.-- Maybe renter takes long hot showers in the tiny unit.-- Maybe renter cooks spaghetti for a long time long in the tiny unit.-- Maybe mini-splits are too big and not running enough.-- Maybe mini-splits mounted too low to grab higher humid air (hot air rises).-- Maybe it's an air circulation problem, ask the renter to put a small 9" fan (like a Vornado) on the floor in the doorway (pointed up at a 45% angle) in the bedroom.

I offered asking price of 89k but during due diligence found out it did not have central air. 

@Candace Buckstead  I definitely recommend first house hacking a single fam home, or a duplex triplex or quadplex (since those are all eligible for owner occupant mortgages).I would probably suggest not starting off with an STR (air bnb).

Now is a great time to be looking in Arizona for your Air BnB and Midterm rentals. 

I know, I just wanted to see what they said next....Funny thing is, I never get these requests from AIR, only VRBO......

Hey guysSo we got our first vacation property all setup on just Air BNB.

You can make minor adjustments based on the type of appliances (dishwasher, clothes washer and dryer, air conditioning, etc.) and the size of the rental.

STR, not AIRBnB.1) Make sure the municipality is STR friendly and looks to remain so.2) Find a year-round attractive location3) Do your own research on VRBO and AIR sites to see what the current STR owners are doing - how much are they making?

I just had a new 3 ton done at one of my homes and had the air handler moved into the attic and some ductwork done, and it cost me $6700 for everything.