They know moving slow in the beginning to extract all they can is more of a win then going fast into a location to open sooner.An exception to this is an A plus location where a dozen tenants want the space.

I am not a big believer of going through a massive headache to extract an additional 3% upside for rents. 

Daring Greatly" by Brené Brown: Brown delves into the power of vulnerability and how it can lead to greater creativity, productivity, and meaningful relationships.Given that you've read several books on multi-family management and acquisitions, you might already have a foundation in property management.

I suggest you look for a local REI mentor (a successful landlord) who would be willing to look at the neighborhood, the property, the current tenant mix and your property management practices, so they can provide you with some meaningful and honest feedback.

The 90% of the population who have no meaningful assets and work 9-5 jobs (at best ) haven't benefited at all.

for the average investor starting out they simply do not have enough cash to play with to make any meaningful amount of money...

If you focus on cash flow, you'll get paid right away, but it's less likely that your cashflow or equity will grow in any meaningful way, and it's really hard to scale when all you are doing is making your DTI lower by fractions of a point with every purchase.

However if I do a BRRRR I can achieve infinite return by extracting all of my investment.

Vague, non-specific questions generally speaking rarely have great quality answers but I’ll do my best in a short but meaningful answer here.

Imagine an X & Y axis on a graph: the more cash you want to extract, the higher the interest rate.