Fences and Walls: Who Pays to Move a Fence Erected in the Wrong Location

My question involves real estate located in the State of: New Jersey

I have recently purchased my first home on. There was fence placed in the back of the house dividing my backyard and my neighbor's located behind me. She came to me and mention that the fence is on her property line. I purchased the house with the fence in its current location. If it is determined by my survey that the fence is in fact on her property line who would be responsible for the cost of moving the fence on the correct property line?

What are my rights?

Fences and Walls: Who Pays to Move a Fence Erected in the Wrong Location