Property dispute

My Maternal Uncle has mortgaged my grand father's property without informing my mother and mothers sister (aunt) illegaly to a pvt bank showing falsely that my maternal uncle is the only heir of the property and has no sisters . Then when we suddenly came to know this we filed an FIR to the police against my maternal uncle and also filed a civil case against him and the bank . And now the case is going for around 7 years and not ending and we are exhausted giving money to the lawyers . And not understanding whether they are continuing it just for gaining money though its obvious . We want our property to be partitioned . And in the mean time we also brought out a certified copy of the dalil from R R department though the original dalil is still in accuisition of the fraud bank . What to do now we want to end this case and move out from here. Please guide.