My freezer has a putrid smell

My freezer has a putrid smell (after cleaning it so many times). It only smells if you open the door of it. My question is, would it be safe to live around it since my property is being bought to be demolished within roughly 6 months? Also, it's an integrated freezer so it will cost me time and money to get it removed professionally. I am just worried If it's dangerous in any way, thanks