The rear door was hit and we cant open the back door now. To add to the issues we got backed into and need to remove the passenger side light set. How do i go about getting the back door open to fix this issue?

Im sorry to say that u will need to have to door removed...u need to bring this to a body repair shop, they may be able to remove the plastic panel on the inside on the door to gain acess to the rear door latch an open it by prying on the latch inside the door...what happened is when u got hit the door latch was crushed against the latch that hold the door lock... there is so much pressure on the lock now u cant apply enough pressure to the lock by pulling on the handle to open it...that is the only way to gain access to the bolts that hold ur light set in....