What should I include in the lease if I decide to do so (things like not being liable for any illegal web activities, download limitations etc)?

Whatever risk of getting demoted in the algorithm for them exists as well on the web. 

@Willam KuczmeraIf you decide to proceed with the distribution, the following IRS web page is a good resource for the rules and tax consequences. https://www.irs.gov/retirement-plans/plan-participant-employee/401k-resource-guide-plan-participants-general-distribution-rules

They do NOT have any web portals to be able to monitor or service your loan.

A simple web search for piercing the corporate veil will outline the Do’s and Don’t’s as it pertains to operating a LLC with this in mind. 

I know your gonna say people can find that info out in the web, right.

But as an out of state investor, I couldn't do AirBNB if it requires me to hand out key codes and to constantly gauge pricing and updating the web site etc. 

Surprisingly there's nothing easily found on the web.

I have a method that I'm formulating, but it is very data intensive (requiring web-scraping and statistical models), but a "good enough" solution could save me a lot of time.

Also, the web of entities that Glenn mentions is truthfully pointless.