You generally need to have a scrubbed list so they're doing real estate and not tech or something else and I recommend using funnels and landing pages to get their interest on social media but it also helps with your open rate.

I know it is not a taxable event for them but what would those tax implications be when I pay them back their principal balance?

In fact they are usually very people social.

Thought maybe social media stuff some of us hate and don't understand anyway. 

Trust me when I say that I participate because it benefits me financially, not because I believe in socialism. 

I also guarantee they are bad parents....make a DFS report so they have some social workers in their life.Find out where they work and start calling for payment...several times a day...making sure to tell anyone who answers the phone what they are doing.

Do some social media work.

Apps, social media tactics, etc..

The staged property performed better across all real estate platforms, including social media engagement and buyer feedback.

With that budget BRRRR in CA will be tough if you want to go out of state research the area thoroughly and the tax implications especially if you plan on continuing to live in CA.