From a platform standpoint, AirBnb is too powerful.

Such as the platform discussed in the original post.

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.

Does anyone have experience and want to discuss puting inexpensive prefab/modular homes (not mobile homes) on vacant lots?

See attached Excel summary sheet.Investment Highlight89% Physically OccupiedSupply Index in a 3-mile radius of 6.8 SF/Capita, 5-mile radius of 7.7 SF/Capita, and 10-mile radius of 8.3 SF/CapitaAdditional Income generated from 4 mobile home lots and 1 mobile home (Not Verified, as thus not included in underwriting assumptions)Key Underwriting AssumptionsDown Payment 25% of Purchase PriceEstimating a CAPEX/Repairs cost of $150,000Estimating Operating Reserves of $10000Stabilized Vacancy and Concessions/loss to lease at 10%Using a cap rate of 7.23%Key Demographic DataTotal Square Footage 21,130 Supply Index: 6.3Population 3,338 1 Yr.