I read a few of these and found them entertaining:

• The sellers told me their house was near the water. It was in the basement.
• The dream of the older generation was to pay off a mortgage. The dream of today's young families is to get one.
• There is no longer a need for the neutron bomb. We already have something that destroys people and leaves buildings intact. It's called a mortgage.
• If you think no one cares you're alive, miss a couple of house payments.
• My buyers went through debt consolidation. Now they have only one bill they won't pay.
• I listed a maintenance free house. In the last 25 years there hasn't been any maintenance.
  

After reading them, some are ironically funny.