I am interested in pursuing the BRRRR method, but I am hesitant to take this on due to the "Rehab" portion of the strategy. 

Quote from @Joshua Lee: I've read about house hacking the BRRRR method, FHA loans, etc..

The best technique I found was D4D and use the 'sniper' method.

with help of AI:for a room to be legally considered a bedroom in California according to building codes, it must meet the following key requirements:Entrance: The bedroom needs at least two methods of egress - it should be accessible from inside the house (commonly through a door), and have one other exit like a window or door.Ceiling Height: At least 50% of the bedroom ceiling must be a minimum of 7 feet in height.

You need to always Google Search for Reviews and comments for any type of Market Investment Method.

Has anyone deployed this method and found success?

This wasn't taken seriously by many sponsors (who used these methods to attract capital as well as reduce the amount of capital they needed to raise) as well as investors (many of whom didn't understand the risks nor were they educated on these risks by the sponsor outside of a paragraph buried in a 100 page PPM).

This method cost you nothing.This is a good starting point to build investment capital while you learn.If you plan to buy and hold or rehab and flip, then you will need either investment partners on conventional funding sources. 

For example, one method would be to have each of your SMLLCs owned by each of your living trusts. 

That means you have to have a reasonable method of valuing the real estate holdings at market value as of 12/31 each year so that you take out the required minimum distribution amount.