For example I hold the core of my real estate holdings without debt (because I'm a conservative investor and I'm more concerned about preventing a loss of money than I am with attempting to maximize potential return).

It's just a fire hose of information and a menu of unnecessary expenses for a new investor that puts the cart before the horse. 

Good way to prevent collusion.

@Don Konipol I don't think Nathan was suggesting that honesty and ethics will prevent being named in a lawsuit.  

If accurate then the SEC rules are designed to prevent unsophisticated investors from getting into this exact situation.

(And if so, how do you prevent everyone in the neighborhood from using it?)

No one is preventing you from doing that.[3]  It seems like an open door to racism.

Avoiding problematic tenants from the start is the best way to prevent problems like non-payment, eviction, and property damage.

Prevent financial loss.

Choosing markets with direct flight access simplifies logistics.After setup, frequent visits are unnecessary if you have a reliable team and good communication.