So you have a decent ROI and in theory you help out the neighborhood. 

In theory, you can buy more than 20 houses with $20K but if I say 200 houses, maybe no one will believe me.Now the whole process begins with a very good deal.

I also agree that you should take a look at multi-family (2-4 unit) properties, as you often can get more bang for your buck here under a single roof.

It wasn't a foreclosure but could have passed for one - vacant for years, no heating system, everything banged up.Within 2 hours of it being listed I had viewed the property, consulted with city code enforcement, offered, counter-offered and got it under contract for $50k cash, as-is, no inspections.

In theory, you could own the home...and I am responsible for the loan.  

Haven't done this, but in theory the LLC could be sold as a whole, but generally if you would otherwise be cherry-picking your price for picking up assets that you don't want would be too low for the seller.

(I love this in theory but have not tried it.

I'd say it delivers the biggest bang for your buck in terms of a single paid real estate product or tool I have ever purchased.

The theory goes ... we have 500 homes paying $1000.00 in property taxes a year or we can have a business paying $2M in pt.Another problem is people's attention span.

My current theory is to focus on the low end properties (30K - 55K in this area) right now.