However, it's important to carefully evaluate the terms and costs associated with refinancing before making a decision.Ultimately, it's important to act quickly and decisively to address this issue before the next payment is due.

I don’t want to run into an issue where I get to many of them and not following rules.* I am only owner financing properties I own outright 

If you're considering investing in land, you need to do your homework thoroughly, understand market trends, assess the potential value of the property, and also take into account various potential risks and issues such as ownership rights, usage restrictions on the land, development costs and so forth.

You are better off budgeting money for maintenance and capital expenses and keeping a reserve in case issues arise faster than your budgeted money gets socked away from incoming rents.

My short-term rental is out of state but I manage it remotely (mostly guest communications and troubleshooting issues) and if I include in that the time I spent getting it ready to rent, I would say I materially participated and even more than anyone else (i.e. cleaner).

The would be buyer made ridiculous demands and essentially used a few minor issues on inspection report to terminate.

Instead of implementing a first right of refusal, there should be an option to buy their homes from them at a fair market value/paying to move their homes elsewhere or give them the first right.This is the real issue, we are not protecting tenants by solely giving them the first right of purchase.

I wonder if the issue is the loan is less than 100k.

Definitely save your battles for more expensive issues.    -- Good Luck!

However, it seems like a major convenience because you can remotely unlock the place or show it to future tenants without being there in person.