@Michael A.
BRRRR and Flipping have very similar qualities. Each requires a rehab. Each investor seems to have their own philosophy on what kind of rehab a BRRRR gets versus a flip. I've done many of each. I always BRRRR's to the same degree as a flip. It provided many benefits to me. It provided an additional exit strategy if I decided to flip the property instead of renting it. It brought a higher ARV, better tenants, higher rents and much less maintenance issues.
A flip provides a lump some of cash. A BRRRR provides long term wealth for generations. You will benefit from BRRRR'g way beyond a flip. The tax benefits alone provide a much better return in the long run; mortgage interest, property tax and depreciation. When you add all those together and include profit. The BRRRR beats flipping everyday. It's just a boring method to become rich. There are no HGTV shows about BRRRR'g, it's not sexy. It just works if you stick it out.