My grandmother has three bank accounts. One at US bank, 53rd bank and Park Federal Credit Union. She wants to add me to these accounts in case something happens, such as death. I currently have a checking and savings account at 53rd bank but recently applied at another bank for a checking account and was denied. I'm assuming this is due to a old checking account I had in which that bank closed b/c of overdrafts. That checking account ended up being a few hundred dollars neg. when closed and I have never paid it back so I am assuming I'm in chexsystems. I'm wondering if it would be possible, if we go to these banks, to add me on to her accounts? They are all checking accounts and maybe a savings account. Do these banks run someone though chexsystems to add them to another persons existing accounts? Please help...