We are not social workers.I know there are plenty of landlords willing to take risks, some win some lose, I prefer to increase my chances of winning by not betting on bad cards.

They give off all the right "good tenant" vibes but I realize I don't know how to do a background check on people who don't have a US social security number.Any tips?

the gurus sell the idea of wholesaling as easy and no money down but that couldn't be more wrong. there is no guarantee return on the money invested in marketing . a wholesaler needs to do a lot, a lot of research to the local market where they are trying to find deals. you need to not only find the deal but prove that it is one to a potential buyer/investor. now Im not trying to discourage you, there are plenty of ways of getting started without MUCH money down .you can get a few cards made at a copy/print shop. you can talk to people and let them know what your trying to do. you can build a social media platform which is free. remember as a wholesaler your simply trying to find the deal then sell it at a commission. a friend of mine that is an agent uses their title company  to find information on houses in my neighborhood,  become friends with agents!.

At the moment I don't have the courage to be physically social, along with worrying about being able to finance deals, and networking (though it's mostly because of the first thing I mentioned).

Socially speaking college is probably going to be one of the best times of your life.

Who here, specifically flippers and whole sellers, use social media (Facebook, Instagram Etc.) for marketing.  

1 . zillow , in person talking , newspaper , social media 2 .

I go to these events sometimes just to socialize with other investors and pass out my business cards.

Figure 10% higher tax (cap gains vs ordinary) and SE tax isn't too bad If someone is over the Social Security limit however still sucks paying it. 

Remember we are handing their hand like a little baby.Next section is for social proof.