Is it a sin for a girl to marry and leave her mother, who is ill with Alzheimer's, under the care of her maternal uncle?

You and your siblings have done well in your eagerness to care for your mother, and we ask God to make it count in the balance of your good deeds. There is no blame or sin upon you for getting married or for your mother moving to live with your uncle, as long as your mother remains under care and you have not abandoned her to destitution. Strive to check on her well-being by communicating with your uncle and visiting her as much as possible.