Those terms would enable me to go forward with renovations until such time that I need to refinance without having onerous monthly payments.  

This is just buying a property you intent to utilize for rental income, but you live in int for a year, which enables you to only put 5% down instead of 20% down! 

That is what will enable you to retire young, debt free and not managing hundreds of houses!

@Bruce Park,  is there a reason the owner doesn't just put a wifi enabled water meter on the portion of the water line that is used by the ADU?   

Syndications changed my life, enabling me to truly Keep More!  

Guests often look for those.Have also seen a recent study that says that 82% of guest prefer to stay in smart home enabled properties and that 60% are willing to pay more to stay at those so I'd recommend adding smart home devices (locks, thermostats, Roku TVs) and clearly market those in your listings.

The rehab enabled a rent increase from $1505/mo to $1750/mo Lessons learned?

As you grow there are entities that help enable you to operate this way without being overwhelmed by 10, 20, 30+ LLCs, such as the Series LLC.

Clearly this is not the case and thus enabling and engaging the misbehaving party in further dialogue is counter-productive.

Some big (for me) deals enabled me to return to school for a master's degree, which led to a career as a journalist and teacher.