Rinse and repeat as many times as life allows, or convert to buying pure investments.Consider employment with a property management company.

For example, we've recently taken over marketing internally because the property management company was not experienced enough in using the newer advertising methods we need to pursue.

OPIf you have a company with a Sales tax license.  

When I worked with a property management company, we had someone buy a unit (single family) that had a STR and marketed it as a STR.

I have noticed that as companies they grow, their quality and attentiveness tend to decrease. 

About 5 years ago one of the sellers we bought a multi family from told us about a company that has a lot of landlords like us and we coshare insurance coverage.

VA company?

There are recommending screening companies on there that you can look into to see what best fits your screening needs.  

my last post on this subject.I ran into a small company  6 folks involved  boy friend girl friends  they read rich dad book then went to a guru presentation and learned about wrapping notes which of course is the bizz model your talking about.

There is no one with experience in actual real estate high up in the company, which is the problem with most tech companies masquerading as real estate companies (including brokerages).Let me know if you want to know even more. :)