That said, I can handle it when necessary and have successfully built multiple self-started businesses and ventures in real estate investing (REI).

You LP lost everything.Other ways, poor property management team isn't managing property well, and syndicator bought in tertiary market with only one or two managers available and no way to self manage.  

Have you considered using a self-directed IRA to invest rather than cashing it out? 

Are you self managing those properties?

I am planning to self manage as well and since there aren't many managers in my area I will likely employ a similar strategy once I decide to outsource the management.

The economic incentives to run bitcoin nodes are self-stabilizing.2) Which government?

I am using TurboTenant and self managing the Nomad property.

If you self manage short-term rentals it's well within reach. 

Does anyone know a property manager that supports small self-storage rentals in addition to residential rentals?

You cannot go after them as for a regulation a+ offering is self attestation (meaning you are attesting that you are not putting in more than 10%).