Are there also groups within LinkedIn that I could join or is there some other method of finding investors on LinkedIn? 

The BRRRR method and creative financing are game-changers!

I am wondering who has done the BRRRR method as an investor and what institutions are investor friends for multiple BRRRS.

Now private lenders are my main purchase method, along with seller financing and BRRRR.

The ways involve a combination of undefined tech innovation and customer willingness to engage in unconventional transaction methods.

Is there a method to the madness or just a shotgun approach until you find one that works?

This is sometimes called the "Enemy Method," and you can search for more details.3.

If the properties were placed into service in 2022 or before, you may need to file form 3115 (change in accounting method) to factor in the 'updated' depreciation schedule from the cost segregation study.Best of luck

I've only seen one person spell it out clearly, but I'm not sure his method is how everyone else views the Rule.  

These self employed 2nd mtg's are typically based on alternative method of caluclation like profit and loss statements if you're self employed or the last 12 months of bank statement deposits using a formula to derive an income from these deposits (like 50% of all annual rolling 12 calendar month deposits X 50% /12 months = monthly income).