I am not an expert at any of these things, but working on projects with experienced contractors has taught me a lot about construction methods, but more so taught me about how professionals operate in the biz.I have also attended architecture school at UNC- Charlotte. 

I’m a new investor solely concentrating on the BRRRR method, and man I’m having a hard time finding leads.

I'm excited to begin investing some cash in buy and hold rental properties along with implementing the BRRR method. 

Using this data you can impute neighborhood rental vacancy rates using various geo-statistical methods. 

That's the only way to consistently use the BRRRR method successfully.  

Of course, there are other methods but I would start with that one first.  

While that isn't a ton of capital, it is a solid enough chunk to get started in any of the methods of REI that you mentioned.

I have taught this method to many people and use it myself as well.

Using my method I didn't come up with a great way to determine what the lag time of the data would be in the 1 county where the level of delinquency seemed to be correct.  

What method are you leaning toward?