I am an adult child for my 98 year old mother, caregiver, and POA. My mother put me on her joint accounts back in 2008 and 2010 when she still could think clearly-she trusts me and she should. I have my name on both and do financial transactions for her benefit only. I did not contribute any money to either account and they are quite large about 50k each. She has a will and a trust with 4 other siblings, three of which she can't stand and neither do I. The money in the trust is invested and is to be split 5 ways after all her affairs are settled at her passing. Does the joint checking accounts pass to myself at her passing or would the courts consider these convenience accounts and make the joint accounts part of her estate. We live in Michigan and I checked with the bank and C.U.-they say it passes to me. I have not used any of this money for myself.