House refinanced 3x

My grandmother bought the home we lived in the 90s for 90k at a 8% interest rate. I found out she refinanced the house several times from what seems like predatory practices and malicious advice and now owes 250k at 6%. Basically the house I thought was paid off now has 30 mortgage and she is 90. Her grandkids are in the will to inherent the house but do we inherent this mortgage?