I ignored Cap and concentrated on the NOI generated. 

You are absolutely right, in that your 100% cash payment is essentially equal to 2-3 downpayments, generating a hefty multiple than 1 house. 

Can you generate this return with less effort / work?

It's amazing that people take their aggressions out on their homes...My generation was raised by depression era parents who really valued having a home more than anything,  and paying it off asap.  

What's the best way to generate leads out there.

There is also a different mindset in the millennial generation.

In my opinion, converting existing living area into a 4th BR on a 1,200sf house with 1 bathroom wouldn't probably net me any additional money on the back end or even likely generate any more interest than it otherwise would as the same sized 3br/1ba.

Jorge, would I still generate qualified calls from renters (tenant/buyers) for my rent-to own homes I control? 

As a third generation Seattle landlord, I'm conflicted on this law.

I am looking to really expand my wholesaling business, I have a few thousand dollars to spend and I think facebook ads are the way to go.. does anyone have any advice on how to find Facebook ad managers that are specific to lead generation in wholesaling?