One property high cash flow, or multiple properties with low cash flow?

[David Burgess]

Complete newbie here, but I'm struggling to understand the advantage of multiple properties that have small cash flow (due to loan repayment) vs a single property that is debt free with large debt flow.  Granted you can "control" more assets, but couldn't you parlay the large cash flow into another debt free property down the road that is also giving you high cash flow?  Everything I've heard and seen on the site so far, seems to suggest that you should keep acquiring as many properties as you can so long as they can generate enough cash flow to pay for themselves and give a modest return.  I'm sure I'm missing something, just curious what it is.  Thanks in advance for you consideration!