Thanks to COVID, for a couple of years, you can actually make enough money to be cash flow positive even if you hire a property manager AND have mortgage payments. 

He uses poorly thought through methods, I've listened to his "methods",  Thus, he has the high amount of  Due On Sale called in a short period of time. 

@Michael Challenger I scraped all the cash I could find and borrowed from family.

Purchase price: $294,500 Cash invested: $144,000 This was my first commercial MF and off market deal.

If not I wouldn't bother selling as there is an incredible amount of money lost in buying and selling properties, so you have to make sure you have a plan to maximize the equity and actually have enough. 

Purchase price: $72,000 Cash invested: $107,600 Case Study: Cockroaches to Cash FlowProperty AcquisitionI found this property through MLS.

But he learned a lot and he can ring the cash register.  

Also, if you buy using a hard money lender or cash, Zach Starnes can do re-fi's off the appraised value shorter than the typical 6mos and then you might not need any money down if you buy at the right price.

@Dave Meyer had an interesting episode on the BiggerPockets Real Estate Podcast about 3 main resources when it comes to investments: cash, time, and experience. 

CoStar) to understand the rental market (rent amounts, absorbtion rate, etc..) but that service is fairly expensive.