I only know two things about plumbing  one pay day is Friday and excrement flows downhill..  

It would be off-grid which I think is totally possible for a small cabin with a sleeping loft, use an RV fridge and toilet, propane instant water heater, and propane heat.

And these multi families today in L.A are selling for over $300,000 per unit these days so if they ever do decide to sell they'll be looking at a big payday ,they might be planning to leave them to their children not sure. 

If your option fee is reasonable (say 3-5%) they will instantly have ~10% equity if they decide to exercise their option so they don't need the option fee or any portion of their rent to be applied to the purchase price.Better yet, find a motivated seller and get the option at a price that's below even today's market value, giving the option instant value.

Once interest rates begin to fall, prices will almost instantly increase due to pent-up demand.

Half the loan is instantly paid off with the $50K, then the $2000 extra principal is 4X the original payment.

The idea of a 1099 trade is definitely something I am considering as it could bring instant cash flow.

Keep pushing. real estate is a long game and instant gratification is rare.

A few points that I considered when crafting this strategy:-I didn't want to turn off Instant Book because of the SEO hit on Airbnb.

Zillow will almost instantly bounce up the zestimate.