Even large and small businesses with intangible residual services like TV, internet, security, pest control or the local contractor with remodels in process could fall behind on payments revenue contract. 

A/C serviced and works great.

Private is an option too, but again, a pay for service on top of the permit fees, etc.   

If you did not like that experience, maybe you should try a smaller company to get a more personalized service experience.  

There are companies such as Cover that offers a full service ADU deliverable from design through construction completion.

And if you are need of MTR management services, my company, Island Stays Hawaii, provides premier STR and MTR management services.   

If a person has to ask, at all, I STRONGLY advise to use a PM service for tenant placement. 

And yes I would recommend my services :) Hey @Donald Hatter!

I would also look at the availability of public water and public sewer, if not at the site how far away are those services.

I'm born and raised in Houston and now work with a full service long-term rental management managing over 300 doors - all SF or MU (up to 4 unit).