My mil lives with me. My DW, her daughter, died 6 months ago. MIL is 87 with limited mobility- never goes out. She also has some mental health issues which make it very difficult to discuss anything or get her to agree with anything as she gets paranoid or unrealistic. We get on well enough. She has her own bedroom,sitting room and bathroom, makes her own meals. I do her shopping cleaning and wash her clothes. I think fairly soon she will need help showering and I can see a gradual decline in what she can do and an increase in the help she will require. I cannot leave her alone overnight as she cannot get out of the house in an emergency and also gets scared, so a sleep in carer is needed. Mil will sometimes pay for additional care sometimes not. She has another daughter who does not live locally and who isn't close to her mum and who tried to suggest that because I'd been married to her sister is become her NOK! Daughter is prepared to arrange for her to be mil's poa but mil won't discuss this as she can make her own decisions at the moment.
MIL does not pay rent or make any contributions other than paying for how own food etc and she will also offer to pay for household shopping (cleaning products etc). She is in receipt of full state pension. I have savings but still work part time, and am 63, active and in good health. Mil has lived as part of our household for approx ten years. This arrangement has never been formalised. The house is owned outright by me. It was previously jointly owned by me and DW. I need some advice from someone, anyone who knows about housing law, and looking after the elderly- a) does my mil have any tenancy tights?
b) what do I do if something happens to me and I can't care for mil?