Depends on which property you pull equity from.

And my rental cash flow went from only $1500/month to 19k/month profit by taking on more loans and harvesting the equity in some of my properties including my primary.

A few thoughts- do you have any equity in the car with the $20K loan? 

To generalize broadly, most who call themselves private or hard money lenders (or any of the other euphemisms for the same thing) typically originate first-position or (rarely) second-position performing real estate loans.

Heck, my company added Equity Lines when I walked into three bank branches for an Equity Line for a pool and I couldn't find someone that knew how to take the application.

A majority of people who rent homes here have 100% equity in them so any rent will cash flow. 

Find a partner who has money to invest with and find & manage the deal (sweat equity).

You could house hack by purchasing a small multifamily with an FHA or conventional loan, reducing your living expenses while building equity.

Looking at this past week's CMI, it's interesting to see the buyer/seller positioning in the SE-ish area compared to the NW-ish area with rates high 6's in JanuaryStill bullish on W/NW future demand due to TSMC factory and other companies (dashboard snapshot below) but time will tell.

I've found that the best areas for the investors I have worked with on BRRRR properties are areas like Center Point, Fultondale, Gardendale, and Pinson areas.These areas are solid and aren't in warzones like Fairfield or Tarrant but will also produce you cash flow and equity unlike cities like Hoover or Vestavia.