Growth formula? Is there such a thing?

[Christopher Lane]

So I know there is no hard and fast formula (or maybe there is?) for growing a portfolio.

My speculation is that by using the #BRRRR strategy you can grow exponentially rather than linearly (the stack - sort of) by taking the equity and using it to reinvest.

A question I have is, wouldn't all the leverage of debt create a thinner margin for cash flow? Where is the point of diminishing returns?

Is it better to get a bunch of lower quality places that have high cash flow in, let's say, Detroit? Not talking bad about Detroit, I think it's a great market, but it's one that I know nothing about. Or would it be better to get a few higher prices rentals in top quality and lower cash flow but higher chance of significant appreciation and rent increases?

Another few questions I have, not really related to the subject but if I invest out of state, do I get a CPA for the state I buy in or the state I live in?

At what point do people hire full time employees for buying new deals (acquisitions), doing taxes, management, contractor, lawyer...

Thanks!!