Assuming your sister was not named financial power of attorney or co-signor on account then I would say it is illegal. If mom had other assets then perhaps this can be brought up in probate court. If no other assets then you might need to sue your sister. I have seen this type of situation many times and usually the family member that took the money has "reasons" such as: 1) providing care to mom, 2) providing free room and board to mom, 3) pay back of loan to mom, 4) funeral expenses, etc.... Good luck! -John
Answered on Sep 15th, 2015 at 8:23 AM