Does my brother, who lives in a separate apartment outside the home, have a share in our deceased father's house, which is registered in my name, knowing that my father undertook to pay for his apartment and furnish it?

No ruling is entailed by mere writing as long as the father disposes of the house as an owner. The house, with its three apartments, is considered an inheritance in which all of the father’s heirs share. The mother and the son are not entitled to sell it except with the consent of the aforementioned brother. The independent apartment in which the brother lives is considered his property because he acquired it during his father’s lifetime and resided in it independently, even though it is written in his name.