Dsis and I inherited a house which is split into two flats and have been renting it out for 15 years now. We own it equally as tenants in common. She is selling her own house and now wants to move into the ground floor flat with her Dh. I expect she’ll buy a couple of houses to rent outright with the proceeds of the sale of her house. Dsis said that I can keep the rent from the upstairs. I said that I would like some time to think about it which didn’t go down too well. I don’t want to be obstructive or unreasonable, but I am worried that there could be disagreements further down the line. We’re both in our 50s and from what she’s said, I think she would like to stay there for forever. She doesn’t want us to transfer ownership of the flat to her name because of Capital Gains Tax, just to live there rent free. AIBU to have some reservations about this? I don’t even know exactly what I should be worried about. I just have a bad feeling that this arrangement could cause problems. E.g. she’s made it clear that she wouldn’t want Dh and I living upstairs at any point, so already seems unfair. Btw she could buy a flat in that location with the proceeds of her house sale but she would get more rental income by buying two properties in a cheaper place.