YoungG,

Just to be clear, are we locking in whatever coin amount is sitting in our registered wallet address at the closing date and time (November 20, 2014 at 11:59pm CDT)?  And we have to guarantee that whatever that amount is, we CAN NOT let that address go below this amount at anytime during the rental period or we will be disqualified from payment.

Is there any leeway if we make a mistake and correct it immediately?

Depending on Mike's answer I would caution people to be careful about making any mistakes when moving coins etc.  It could be very costly!