My mother-in-law has Alzheimer's and is steadily needing more care than our present care company provides, meaning the need for more time especially with personal care. We all plan to take on extra responsibilities, but my sister-in-law has offered to take on certain duties in a more formal capacity and therefore we want to develop an agreement and consider this to be paid employment. She is planning to give up her present job of work. Does anyone have any advice about the legal position with regard to employing a member of the family in role as chief carer.