text: if you assume the mortgage on a house is it possible for the previous owners to take back the house? we recently assumed the mortage on my grandmothers house in october and have been paying everything since, but now my aunt who is executor of the estate is saying she thinks she made a mistake. please note, we legally assumed the mortgage through the mortgage company. should we worry about my aunt? did you also receive title to the house at the same time. if you did, you own the hose and your aunt can do nothing about that. if not, what you did was accept responsibility for the payments, but did not acquire ownership. you may want to consult a lawyer.