I was unsure about the commercial tenants but knew I could get the MHPs up to market rent very quickly.

It's not a quick enough way, although cash for keys goes against all landlording lessons we are taught.

You might also look into learning about BRRRR (Buy, Rehab, Rent, Refinance, Repeat), a popular method for scaling a portfolio.Network Locally: Engaging with local investors and attending meetups in markets like Dallas or Fort Worth can provide insights and connections that are invaluable.You'll find that momentum grows quickly.

Study what has sold at a solid price and quickly.

There is very little to buy, and much of it would be better for flippers looking for quick upside turns.   

With a flat fee structure, if you have a vacancy, the property management company has no real incentive to fill it quickly.

Most of it can be done very quickly.

Sold it for a profit fairly quickly.

Luxury vinyl floors, no carpet means quick turn arounds.  

If you're planning on managing the rental unit yourself, you'll learn a lot about owning rentals pretty quickly.