How many properties could I have by now if I did as you say and buy them conventional and compound the cashflow? 

@Chris Wilkening Dave Ramsey is trying to help the most people possible (aka have a big audience) and the best advice for most people is to play things safe and let small gains compound over time.

The leverage compounds the return from appreciation. 

If the owners are delinquent on December 31st they are in trouble so there’s a compound effect with Christmas and taxes that pressures the homeowners who already scrambling.

If the trim needs to be painted, use joint compound to smooth out rough edges from multiple layers of paint.

But like in other areas of investing and real estate specifically, there is a massive opportunity for your experience and progress to compound.

If you don’t like to read, listen or educate yourself than unfortunately you will likely not find much success (although I am sure there are those out there that have succeeded without).Rich Dad Poor Dad, Millionaire Real Estate Investor, Multi- Family Millions (Dave Lindahl), ABC’s of Real Estate Investing, The Book on Rental Property Investing, Hold, The Advanced Guide to Real Estate Investing, The Due Diligence Handbook for Commercial Real Estate, Millionaire Real Estate Agent, The Book on Managing Rental Properties (Brandon Turner), The Emyth RevistitedCrushing It in Apartments and Commercial Real Estate, Emerging Real Estate Markets ,The ABC’s of Property Management, Wheelbarrow Profits, The One Thing, Outliers, Start with Why, David and Goliath, Chasing Excellence, Extreme Ownership, The Compound Effect, The Entrepreneur Roller Coaster, Be Obsessed or Be Average, The 10x Rule, The Obstacle is the Way, Ego is the Enemy, Am I Being Too Subtle, 48 Laws of Power, Atlas Shrugged, Man’s Search For Meaning, Sapiens, Tools of Titans, Four Hour Work Week, Who Not How, Shoe Dog, Ride of a Lifetime, The Honey Bee, Living with a Seal, 10% Happier, Relentless, Zero to One, Can’t Hurt Me.

This is paid to them on a monthly non-compounding basis of interest only payments.Each of these investor notes are set with a certain time parameter.

The knowledge will compound.

An annualized monthly rate of 13.87% compounded over 12 months is the same as 14.77 annually.