He has all of this customers in VB, FL.

I’ve said it before and I’ll say it again: if you don’t own the relationship with your customer, you don’t own your business, you’re just renting it from someone else.

Here's one that AAOA (American Apartment Owners Assn) partners with: https://www.american-apartment-owners-association.org/solutions/rent-collection/It's a flat fee service - and generally once the tenant finds out "it's on his permanent record," it gets paid.Hope this helps; sorry you're having to deal with this in the first place.

Zero midnight ghost fingerblasting, 100% customer satisfaction! 

There are many more comprehensive underwriting solutions for multifamily buildings.

Now, as a business, how to deal with stellar customer service?

If you plan to fix and flip properties (or act as GC for other customers) then you probably want to setup the LLC for liability protection. 

Is anyone aware of any solutions that allow you to monitor water usage from various rooms (e.g.

Perhaps there is a flipper in the area that would advise you, or help you make connections or maybe just helps you see a solution you wouldn't have seen yourself....and bring them in on equity in the deal so they have skin in the game.Good Luck!

The answer on BP is always “it depends...” and then I get the subjective pros and cons without any actionable steps for finding solutions to which option works best for me.