From Yahoo! Finance article here (bolding mine):

Rieva Lesonsky, co-author of "Start Your Own Business," and senior vice president and editorial director at Entrepreneur magazine:
Lesonsky’s best advice "was from the owner of our magazine, Peter Shea," she recalls. "He said, ‘Housing prices have gone up — get a second mortgage and pay off your debt.’ I did, and I’m debt-free."

Remind me never to read Entrepreneur Magazine.