Comment by araes

Yes, here's a couple examples from a quick search on [1] 2006 to 2008 timeframe.

[1] https://www.google.com/search?q=financial+real+estate+warnin...

Reuters, 8/9/2007, "House bubble could be a self-fulfilling prophecy", https://www.reuters.com/article/world/house-bubble-could-be-...

"experts fear is that excessive focus on the issue could generate enough fear among homebuyers to lead to the first-ever nationwide housing drop"

"Alan Greenspan doubts there is a national bubble but warns repeatedly of "froth" in local housing markets and imminent regional downturns."

"Barely a day goes by without blaring headlines about housing bubbles in newspapers and magazines."

NBC News, 8/10/2007, "High-risk mortgages turning into toxic mess"

"the option and interest-only ARMs held by more creditworthy borrowers loom as another calamity in the making"

"If the worst fears about these loans materialize, the economic damage would likely extend well beyond the United States because much of the debt has been packaged into securities sold to pension funds, banks and other investors around the world who were hungry for high yields."

"there is still reason to be alarmed because the trouble with option and interest-only ARMs still appears to be in its early stages"

"Those loans are begging to blow up. This is a true financial crisis"