Well there's a reason they screen their borrowers, secure their loans with a first position trust deed/mortgage and charge a small fortune to make such a loan.

The market supply has had a surplus meaning they are sitting longer and "stockpiling", nothing crazy but it is noticeable in the chart.

Just like a mortgage has

You might want to read our series about “How to Screen a PMC Better than a Tenant”, since selecting the wrong PMC is usually more harmful than selecting a bad tenant: https://www.biggerpockets.com/member-blogs/3094/91877-how-to-screen-a-pmc-better-than-a-tenant-part-1-services-and-processes

From a property appreciation / ROI-on-sale point of view, its unclear how attractive such a property would be for a future buyer.Would really appreciate your thoughts on this Invest 5S proposition or similar build-to-rent units.

One is a DSCR loan that covers 5 properties (also a 30-year fixed...at 3.75%!).

.: @Brent Harasymwhy not start with a house hack instead? 

So on the rental agreement, I had wrote its a two bedroo0m house ,then on a separate agreement, I wrote one bedroom for the remaining portion  of the rent. 

I would suggest looking to bring in a partner and give them a percentage of equity for the $.Another option is to take profits from flips to grow or look to sell some of your rentals to grow as well.

Quote from @Robert Frazier: I would stick to something that can be replicated on each flip when you are in a market like this price point.