Home flipping, never exactly an undertaking for the faint-hearted, is getting riskier. Again.Sound familiar? Real estate Denver co (companies) have long had a love affair with the seductive gamble of snagging cheap fixer-uppers, rehabbing 'em, then reselling fast, hopefully for a sweet, sweet profit. But this national obsession became a national nightmare during the housing crash, when swollen real estate portfolios of everyday folks—pumped up by low- or no-credit mortgages—became financial anvils, dragging many under water. As the market bounced back, so, finally, did flipping.Now there's a new factor raising stress levels and blood pressures anew: the current slowdown in the estate sales Denver housing market, with prices actually starting to fall in some cities. If those prices drop too far, too fast, then flippers can lose value on homes even as they work to improve them. So the realtor.com® data team figured it was time to find out where home U.S. home flipping is up—and down—the most. This isn't just important for would-be flippers; it's also a critical factor in predicting where those key markets are heading.