Get a side gig for extra cash flow, stop all extra spending and live like a monk. 

If you're only doing one off flips here and there this won't work though as you'd be paying extra interest that you don't need to. 

Increase earnings, reduce expenses, save, and invest.

Quote from @Devin James: Quote from @Jay Hinrichs: for us we do very little marketing we rely on MLS what we do to compete is spend an extra 10k or so per house with upgrades other builders simply wont do..

The IRS partially validated it by saying it is taxable, but they also tax illegal earnings.

I don’t believe a tenant can stay forever, and I can cover the extra payments and lawyer fees for up to two years for the tenant who will be harder to remove.

Emphasize that these extra steps would protect both the property and your investment. 

Figure out how to get this money, maybe you have well-off parents who can give it to you or you may have to earn it yourself.

Don’t be afraid to reach out and offer value, even if it means going the extra mile in the beginning.

He's probably earned around $60 million from "teaching" others.