Nor does this method apply to buy and holds, MFHs, MHPS, or anything else unrelated.

Essentially still making the Brrrr method work with this type of loan? 

Utilize the enemy method - like @Bradley Buxton said, take a look at your competition to see how yours compares and make adjustments accordingly

Pay to learn about the BRRRR method and connect with like minded people and get it done in 1 year.

If there are other or better methods to consider, please let me know!

If you are interested in finding off market properties I can show you a few of my methods. 

None of the methods you purposed are bad, just gotta commit and run it for 5-10 years at a time.

They work great, can be one of the most cost effective lead-gen methods out there when done right.

Hello Everyone,My name is Carlene and I am a new real estate investor interested in brrrr method of investing.

While completing a Cost Seg study, they were very resistent to me using 6% and because of time-sensitivity, I decided to default to the "rule of thumb" method that you mentioned and used 80/20.