Typically there are no prepayment penalties on hard money loans, so you can limit your holding cost if you're able to quickly complete the project and sell or refinance in a few months. 

Typically they are not eligible for traditional financing which implies other funding sources (HML, private Monet, self funded, etc).  

A higher ratio (typically above 1.0) indicates that the property generates sufficient income to cover the debt, making it a lower-risk investment for lenders.3.

Typically lenders for non recourse require the borrower to have a net worth that is equal or greater to the outstanding loan blance, have at least 1 year reserves for debt service and experience and or a track record.

What is the seller typically expecting to sell these for, considering that the UPB and legal balance are lower than the property value?

This is only one area of real estate that should be addressed, and it typically involves premises liability/property management type claims.

For a single-family, you'll typically need 15% down, while for a multi-family, you'll be looking at 25-30% down.

Typically, you'll want to get out before you hit major repairs or uncomfortable cash flow.

I think a lot of people like using the platform since even the primitive sites offer more space and privacy than a 'typical' public campground where you can hear the next guy snoring.   

Also I never buy anything from anyone on facebook, while you may think "hey whats $20", its learning to know who is and is not honest in this space and people like this typically are not going to be honest.