Mark didn’t have a six-figure salary when he started investing in real estate.

The Florida-based former police officer, who prefers not to share his last name for privacy reasons, said he never earned more than $52,000 a year. Still, he built a 25-unit real-estate portfolio in less than five years and retired from his day job at 50.

One tool that helped him get started was something he already had: equity in his home.

To fund his first investment property, a $100,000 single-family house in Virginia’s Shenandoah Valley, Mark opened a home equity line of credit, or HELOC, against his paid-off primary residence.

His home was worth about $200,000 at…

Read the full article at BUSINESSINSIDER.COM