I'm hoping I can get some recommendations on good readings or pod casts on the two topics: (I am more concentrating on the BRRRR method) I'm having a hard time understanding the benefits between buying a house cash, or using a loan/mortgage.

Hi @Toks AkindeleThe mortgages that you will need to concentrate on after the 10 that you have financed are Non-QM and commercial.

And over time as the lP buys out the interests of investors who don't want to go forward, the shares become more concentrated. 

At the same time, begin to build a brand on LinkedIn because this is likely one of the highest concentration of high net-worth and high income individuals anywhere online.1.

@Robert BurnsAs long as Iv'e been researching probate leads I still use direct mail to this day ~ and follow up with a cold call later.You should concentrate for PR's (Personal Representative) that reside outside the state of LA (CA, WY, AK, etc.,) as the PR most likely will be motivated to sell.If the PR provide's a cell phone number yes, I'll usually send a text...

I concentrate my efforts on RE because historically I have obtained by far the best return from RE (over 100% return annual).  

I just want to be free and clear so when we move to the next property we can concentrate on the cashflow business side vs the juggling of the credit card payments.

Ozone will do permanent damage to your lungs in this level of concentration.

At these meetings I also met wholesalers, and multiple real estate brokers who concentrate on investment real estate only in specific markets. 

If you get experienced, maybe tackle a project like this, but honestly, I know full time flippers doing millions of dollars per year that would never touch something that large, too much concentrated risk, too many things to go wrong.