Real estate agent Mauricio Umansky says high mortgage rates, high prices and low supply are creating difficulties for homebuyers on ‘The Claman Countdown.’ Celebrity real estate agent Mauricio Umansky is sounding the alarm over the “perfect storm of total unaffordability” brewing in the housing market.  Mauricio Umansky, The Agency founder and CEO, reacted to the state of the housing market after the 30-year fixed mortgage rate hit its highest level since early December. “We’ve got super high interest rates above 7%. Mortgage applications are as low as they’ve been since 1995. And then we’ve got no supply,” he said during his appearance on “The Claman Countdown” Wednesday.  Umansky said we…