Irregardless if a sale is a short sale or not, once the closing takes place you are no longer the owner of the house. You must be out of the house before you go to the closing. I've seen people move out on the same day of the closing but always BEFORE. You are not allowed back into the house after to remove your belongings.
Under certain terms and specific circumstances the seller may stay after closing and may also pay "rent" to the new owner (yes, pay rent because you are no longer the owner of the properyt) but that is something that is typically decided in advance and not the day of the closing. If asked at the day of closing, the answer will be no. Unfortunately you are going to do what it is you need to do to make sure you are out prior to the closing.
You've come this far with the buyer and the bank, and as Jeanne states, don't jeopardize your transaction now.
Gina Chirico, Sales Associate
Prudential NJ Properties
973-992-6363 ext 116 office