Realistically; has anyone gone from ie. 16 to 32-64-100 unit's?

[Frank D'Andrea III]

I'm wondering who has implemented a 'Grant Cardone' methodology throughout their REI journey and/or does or has it worked for you similar to his teaching's.

Have you actually been able to buy, hold for 3-5 years and sell at a 150% increase in value from original purchase and then go on to a twice the unit's purchase for your next property?

Basically, I suppose I'd just like some validity to this "double-up" approach and is it tried and true to "normal" REI's?

I welcome and appreciate all stories of who are willing to share their REI commercial MF journey. Thanks in advance!