When George and Linda drive away from Elysium the first time, there is paper and tape over the left rear side window of their car where it was damaged when it overturned. In the next shot, the paper and tape disappears and the window is undamaged. Then later, when you see the car in the lake the paper and tape is back again.
The "Deed" that is shown to us in the movie is titled "Deed of Trust". A warranty deed should have been used instead. A Deed of Trust does not give title to the property to the person buying the property, it gives title to a lender in trust to secure repayment of a loan used to buy the property.