And if you’re disciplined enough, you could set it up so that you use the HELOC with a minimally-allowed amortized loan and effectively reduce your debt service with every month.

You need to discipline yourself and your family to live beneath your means.

 Business classes in college are probably a waste of money in the real world  However there are many examples of people in the military who saved up a great deal of money while performing their duties for a few years and then after discharge they had a nice pile of money to get started in real estate Will also teach discipline and other skills important to real estateNot to mention then you can get the G.I. benefit to go to college free if you choose

Because you have a 9-5 job, you will need to dedicate time outside of work to get mostly there, this means you will basically have a part-time job starting your Real Estate business, this is where I've seen many fail due to lack of discipline or not wanting to give up that playtime, treat it like a paid job. 

The vast majority of landlords lack the discipline to actually be an expert as is abundantly clear from web sites like this.

You really need to be disciplined with this strategy.

But we're not disciplined enough to do this often.

and @Aaron Stuiber its not a pipe dream if you are disciplined, and understand it takes many years to be an overnight success ridiculous hard work for over a decade for me, 14 hours a day 7 days a week to be most accurate.

Would recommend to stay disciplined and keep making offer that meet your standards.

Short term gain and societal views on money make the less disciplined people spend so much more.