Unless you have very deep pockets or great social circle, you will find a small % agents can make a living.

Baby Boomers are a massive generation and Social Security helps pay rent for a lot of them, in some ways it's a version of Section 8 housing but obviously with different tenants. 

You forgot to ask for his social security number, haha.

If they did, they would not have time to blast social media with these ads.  

Social media outlets are one of the strongest currently available, also check out big internet players like google.

No reason to ever socialize with tenants.

And social media as for marketing or finding the people?

These events are great social networks that allow regular folks like you and me to bounce investment ideas off of one another, and from that partnerships can be established to mutually benefit each other.

I spoke to a  real estate agent friend and they said that I will need the social security number of the previous owner to sell or list the real estate that I got at the sale.

It is the idea that "socialism works" when in reality it doesn't.