My only concern is that the introductory/basic plan has a 5 envelope limit - assuming this is a monthly limitation - and I may have 5+ applicants that are duds before landing on one that I am comfortable with based on screening criteria etc...

I'm not sure how to articulate it but, basically this bit of knowledge saves me a bunch of time and kind of surprised it hasn't come up in any of the books, articles, or videos I've been learning from.

Buying rentals for cash is VERY conservative and will take a long time to amass a decent portfolio.Leverage is how to grow your portfolio and wealth faster.Simple Comparison Example:1) Buy $100k property cash, it appreciates 5% in value annually => basically a 5% return on your investment ($5k/$100k).2) Buy $100k property with 20% down, mortgage rest.

Last year we saw just shy of 14 million visitors.While I know just the basics of the cabin you were looking at, there are a lot of variables and things to factor in when looking not just at the cabin itself but pulling apart and dissecting those numbers to make certain it makes sense.

Basically if the Townhome cash flows well its almost an easy slam dunk deal.

Basically it will tell you the demand, pretty cool tool.

But my real estate investment knowledge is very limited to the basics that one always starts buying it as their primary residence. 

Start by mastering the basics: find motivated sellers, build strong connections with cash buyers, and never stop learning.

Funds of funds is basically unregistered/unlicensed broker-dealers or investment advisors acting as a sponsor in a GP role raising money to invest in other funds.As you can see by my tone I am not a big fan of them Its the next version of wholesaling at a syndication level.

Basically, your question does not have a generic answer.Here's some reading to start:https://www.biggerpockets.com/forums/51-tax-legal-issues-con...https://www.biggerpockets.com/forums/51-tax-legal-issues-con...