My plan would be to leave 20-25% of the equity in the refi. 

Consider his book, "Cash Flow Quadrant" as a must read, but at a lower priority than the other 2 I mentioned.I've basically had to set aside almost all business activities for about 9 months now; leaving rentals rented and unable to pursue anything new for awhile.

I have no plans of leaving my current job to start wholesaling, I am more focused on buy & hold, but I like to be versed in all areas. 

(Leaving wholesaling behind to get into buy/hold investing).

I'm leaving my current job at an artist management and booking agency to obtain my NY State real estate license at the beginning of 2019.

there are moral and ethical arguments in this scenario that your glossing over..were it becomes illegal Is as I stated the bad people get in there rip the rents and never pay and leave the poor seller out to dry..

If you can't average this it leaves a ?

She asked him to leave he said hes not paying and she has to file an eviction.

Yeah, the guy with the Bripple homes would probably be better off selling them as a single family home once the renters leave, instead of trying to sell them as rentals to investors.  

A bank can re-appraise your loan and decide if you don't have enough skin in the game, they will demand you put more money down.This, from what I know, has only happened twice-Savings and loan crisis (1990s?