Four years ago my father-in-law gifted money to my husband in the amount of $11,000 for three years in a row. Last year while filing for Medicare he found out he should not have done that. My sister-in-law gave the money to my father-in-law to bring his bank account back to the standing it needed to be at and now she says we owe her that money. Do we owe that money to her since it was a gift to us? Are we responsible for his money mismanagement?