100+ units BRRRR - 20 years old.

I have a friend that is 20 years old who has BRRRR'd 100+ units, mostly single family, in Central Illinois

His dad helped him start 2 years ago with a couple deals and he has since skyrocketed the business himself. 

He is currently buying units for under $50k a piece, renovating them, and refinancing the hard money lenders out of the deal which they are currently giving him 100% of the purchase price + renovation costs. He does not have equity partners and keeps the properties for cash flow (he used to flip them, now he holds).

Any suggestions for how he could scale his deal flow?

I am connected with larger private equity/debt groups who will be able to fund his deals if he scales. He has the renovations down to a T. All he needs is more deals. 

Would be happy to do business with people who are consistently finding these types of distressed small deals in the midwest.