Interest rate higher.

This can reduce occupancy and reduce the average nightly rate (as compared to a higher nightly rate and lower cleaning fee). 

( I know there are certain rules to the 1031 and having 3 separate sales may be a little challenging) Also,  I thought about just refinancing the 3 properties, but the rates are a little high to cashflow well.  

However if you are charging your Short term rate maybe you do. 

In DeCleene, 115 T.C. 457 (2000) the taxpayer closed on a vacant lot and then transferred the lot to a third-party while improvements were constructed.

interest rates have more than doubled since the end of 2021.  

If you have a loan, you may wish to look into due-on-transfer clauses.

Unlike traditional real estate notes is something that is easy to do from afar since you do not get access to the interior anyways so there is nothing you can physically inspect.You are correct that you will get $500-$600 a month in payments but also recognize its taxed at ordinary rates... 

And only private money should be taking a percentage of the profit at a lower rate.

This avoids the seasoning period and still allows conventional financing for the best rates.