Pay Dirt July 06, 20261:01 PM Photo illustration by Slate. Photo by Liubomyr Vorona/iStock/Getty Images Plus. Pay Dirt is Slate’s money advice column. Have a question? Send it to Kristin and Ilyce here. (It’s anonymous!) Dear Pay Dirt, My brother-in-law, “Shawn,” lived with my (now incapacitated) mother-in-law, “Sandra,” for approximately four years. During that time, Sandra relied on Shawn to assist her with her banking and paying of bills. Sandra became more and more incapable of managing her own affairs, and likely did not have legal capacity in the last year or so they lived together. My brother-in-law, “Shawn,” lived with my (now incapacitated) mother-in-law, “Sandra,” for approximately four years. During that time, Sandra relied on Shawn to assist her with her banking and paying of b