These work with the working-class in mind, but they don't seem to be as effective in markets above 150k.

If I can force appreciation with little effort, money, or risk (things like sub metering or raising under market rents to market), I don't mind paying for some of it.  

Surround yourself with like minded people.

It blew my mind and I became obsessed with the idea of buying notes.

Unless of course you are not risk adverse and saving a few thousand is more important than having more peace of mind.

I have used services like Cozy.co in the past to collect rent - but not sure about the application fee.I know that plenty of services will do the screenings for you, but I don't mind (and actually prefer) to be the one who vets each applicant. 

Me and my wife have changed our minds on the home as it's a little far out of town, and the value has risen a considerable amount.My question is, if we manage to sell the home in the first few weeks when we buy it, how easy is it to sell it from a documentation/legal standpoint?

I am interested in using this strategy, but I'm having trouble finding information relevant to the method I have in mind.

Keep in mind though that most have a minimum investment of $50K-$100K with hold periods anywhere from 3-10 years (ish, this varies of course), so you'll be tying up a good chunk of your solo401k as most of the time it's advised that these types of deals be considered "illiquid."

We are curious to know how you arrive to the 48k figure, would you mind diving into a bit further via PM?