The facebook groups are a great place to find mentor programs and such in your local markets 

If you know where the tenant works (perhaps from their rental application or a neighbor or facebook), you could serve the notice elsewhere. 

get creative)Craigslist - for sale/rent by owner (similar to zillow)Facebook marketplace - For Sale by ownerFacebook REI groups - ask wholesalers and other investors what they have in their inventory and tell them what you're looking for. 

There are wholesale deals from time to time, but the best ones are not typically sitting around on Facebook.

But what you’re encouraging is that when I am 23, I should use the first 4 or so years just building a portfolio of LTR’s and then when I am 27, look into leveraging STR’s to meet the “Real Estate Professional Status” and “Material Participation” the IRS outlines, correct? 

There's a STR Homes for Sale Facebook group, and I'm sure there are others.I sell STRs to investors on the Emerald Coast, so my advice to you is to locate the best real estate agent in SLC that ALSO invests in STRs themselves AND does a lot of business in this niche.  

These areas won't give you cash flow without significant downpayment, but their price/rent ratios are much more friendly compared to other cities in the Bay Area and you can also benefit from their appreciation.Another thing to put on your radar is the Real Estate Professional Status (REPS) election.

You can also talk to hosts in local Facebook groups in areas you are interested in.2.

Fix n flips are typically dealer status income not capital gain.  

What is the Facebook group you have set up?