Blockchain on the other hand as a technology does have useful applications

I think it depends on your state. 

But it is my understanding from these companies that a landlord policy does not cover STR or any renters under 30/60/120 days depending on who you talk to.

I currently have 483 clicks on my rental listing, which has led to 3 chats over FB messenger, but so far 0 applications.

It all depends on the time of the year. 

I would say it depends, but I lean toward yes. 

To me this is very market dependent and product dependent.. in our Market some developments that are red hot that Lennar owns they might only offer 5k on a 600k sale.

Depends what tracker you're using, for example the federal MORTGAGE30USmay be available, orI:US30YMR

If you can sub-meter the water that is always preferred it just depends on how feasible it is to do that. 

I'd want to know more information to make a good recommendation, but it sounds like you would have a strong argument if everything else is the same except for location.MP tasksTenant Management:Showing properties, screening applicants, and preparing leasesWelcoming tenants and addressing inquiriesCollecting rent and managing evictionsProperty Maintenance:Cleaning, repairs, and inspectionsAdministrative & Marketing:Supervising staff, purchasing supplies, and promoting rentals (ads and website)