Such as the platform discussed in the original post.

And, I'm willing to bet that most landlords don't do much better than a 10% annual return on their funds.

If you want to bet on this, you can wait for a couple years before doing your cash out refinance.  

Are there any online platforms or institutions you recommend for studying real estate principles, market analysis, and property management?

I've tried 5+ different platforms and it's by far the best. 

Other platforms like RentRedi are so overloaded with features and require additional subscriptions that I gave up on it --- Baselane was simple as hell and did those things better IMO but is missing some core pieces.What platforms do you love for the above items?

BP is a great platform and I've met a lot of my network here.

Hi Preston, just posting my first rental investment on the platform.

Their platform is robust enough for all basic landlord/tenant needs—rental advertising, screening, applications, rental payment, document storage, maintenance requests, etc.

Due to to small location wouldn't necessarily bet on cap rate compression.