True, if he bought 4 of them, leveraging it, his cash flow is diminished, with mortgages as high as 18%.By 1982, his mix use property was paid off as he had a $15K mortgage in 1963.

rent prices have not been keeping up with increase in property taxes which diminishes our cash flow. 

So as that that yield diminishes, the cash is going to get employed right?

Maybe add on Booking.com but after that it's the law of diminishing returns - lots of work/time for just a guest or two.If you are self managing I would limit the amount of platforms to the top few because it could get overwhelming tracking the property on all the various sites because they all work a little bit differently.

After speaking with a turnkey property company, agree with the assessment that it is not the best choice as cash flow was diminished considerably along with cash out refi option as the properties are in top shape already.

Our experience is similar to @Filipe Pereira's -- demand for rentals has not diminished, but rather increased greatly during this lockdown. 

Diminish the value of text as a communication channel 3.

Whether or not the other benefits of new construction outweigh this diminishment of potential appreciation could be the topic of another post.Deeper dive and feedbackI’d be super interested to hear from folks on this topic.

I am worried not only about escalating costs but also about diminishing profit margins due to delays in obtaining permits.

Perhaps I missed the point, that the cost of scaling would simply make it a model with ever diminishing returns, with only so much deals you could close in each given locale.