As you obtain/get to having paid-for rentals and avoid financing fees (my last buy had closing costs of $417 vs $4700 with a loan), the snowball grows and sustains itself. 

Then the good deals are sustained and everyone who paid too much, spent too much on construction, over-leveraged, was too aggressive on their pro-formas, etc gets wiped out.

I absolutely agree and hope that this serves as a wake call to the dangers of building a country on consumption and dependence on foreign goods to sustain itself.

If it was me in that specific instance you mentioned, I would evaluate that specific property as is, and make sure it will be able to sustain itself as a normal market rental (maybe you don't charge market rent right now because it is your parents, just an assumption).

Bruce Norris gave a good talk on this he bought a bunch of Texas rentals and only held them a short time once he figured out they were not going to be sustainable because of prop tax'sPlus when you live in CA HIGH  income tax.. and invest in Texas  NO income tax but very high property tax's  you kind of get double whammied.. you really need that appreciation to bail you out.. 

Goals: This business’s end goal is to achieve financial freedom through positive cashflow and to create sustainable wealth.

Explain to them that the pace is not sustainable and people are going to leave or go on sick leave. 

Unless you can sustain through tough times you will be wiped out.

I feel like this is my calling and if what I'm saying resonates with you and you'd be willing to meet me for a cup of coffee or a beer, please reach out!

I want each property to sustain itself.