I purchased a 4-family last year using this method and would do it again in a heartbeat.Student rentals can be lucrative because they rent by the bedroom, but are hard to come by.

I both sell and purchase properties via the lease option method and one of my protections as the lease option buyer is knowing that the seller / owner cannot sell or refinance the house out from under me as long as I have that recorded option against the property effectively creating a lien. 

Ultimately, our goal is to utilize the BRRRR  method but that would be years down the road when we can bring more cash to the table. 

What training course do you suggest to learn this method?

I've known multiple people in this area that do BRRRR method but they've always had an in (real estate attorney, contractor, realtor, etc.) in order to hear about the good deals. 

There are many sources on bigger pockets where you can find free information and also members posting results they have had using different methods.

The rule is that your purchase price should be allocated between land and building in the same ratio as the value of each component bears to the value of the property as a whole.So let's say the property is worth $100,000 with $60,000 of the value attributable to land and $40,000 attributable to building (you can use any reasonable method to determine this; one easy way used by many is the assessor's split, though there are other methods that could yield a better answer for you).You buy the property  at a huge discount for $10,000

Others entry points could be the BRRRR method, or even buying a house and simply renting rooms to get started as a landlord.

@Matthew Michels In order to find motivated sellers, you'll have to try out a few different methods to see what works.

The IRS doesn't seem to care which method you choose but it must be reasonable and consistent.