Having the contractor relationship in place to move quickly and provide a high quality renovation at a reasonable price.

Seems too low to be real.

They must provide quality service, or their clients won't want to pay the price.

These types of low down payment no equity transaction have a horrendous default  rate way over 50%  

You can bring in more investors or use higher leverage if you are currently doing low LTV

Capacity and Tolerance. 1) Capacity: how many people can you comfortably fit in the property, is there room to add more, or add more value to the tenants to increase rent.2) Tolerance: How many people are you comfortable living with, if there are vacancies are you able to handle that.House hacking is an amazing path to homeownership, and a nice low barrier to entry into self managing your properties.

I found a PM called Hostex.io for the STR so far so good I could not believe the very low annual fee which was less than $90 a year.

Completely agree with you on this; I'm not making any claims to the quality of these lenders here.

Maybe I'm no longer a low risk bond investor, maybe I'm parking my money in $VOO instead, CRE REITs, or perhaps higher risk higher return bonds. 

You can also gain valuable experience virtually and offer low or no cost "co-hosting" services.