In 2011 I engaged in a rental contract that was $2500 per month. My wife and I rented this home becuase we intended on buying the home, it was a short sale and the previous owner was not paying mortgage payments. I asked if the previous owner could lower the rent to 1250 so that we could save more to put down on the home as it was looking like the bank was bumping our offers. He sent an e-mail stating it was ok to lower the rent and continue payments monthly. After 8 months of no closing we decided to build a home and told the owner we were no longer interested and we would be moving out asap. The previous owner then demanded we pay the $2500 per month now that we were not buying his home. My question is, as soon as he e-mailed it was ok to drop the rent payment, didn't that e-mail void any contract that we had?