Myself and DCs were staying with my parents for what was intended to be a short time after leaving my abusive ex. DF was helping me to sort out somewhere for me and DC to live - he was going to be my guarantor due to Ex having financially abused me and wrecking my credit.
A few months in, DF died very suddenly. DM leaned on me heavily to get everything sorted, stating that she didn’t want the responsibility.
A year after DF’s death, I spoke to DM about myself and DC moving. She became very upset, saying that she didn’t want to live alone, and subsequently decided that she wanted to move, too. Eventually, out of guilt, I agreed to us all moving to a new house together. We had a couple of properties fall through, but eventually moved a year later. DM took the decision to put the new house in my name. I have since invested a lot of time and a significant amount of money into the house making improvements and repairs, and the house value has increased by around £150k.
Two more years down the line - I need out. DM is difficult to live with and my kids hate it. How do I tell her, and what should I reasonably expect to keep / give back from the sale of the house?