I’m 50 years old and the beneficiary of an Inherited IRA owned by father and my mother was the original IRA depositor. I’m being told that I am required to withdraw all funds from this IRA in the next 5 years vs. over my expected life using the single life table. While this advice is true what I discovered was that my when mother passed away in 2012 my father was the beneficiary of her IRA. At that time, my dad submitted paperwork to open a new IRA in his name and have my mother’s IRA assets transferred into his IRA. Unfortunately, the financial institution mistakenly opened an Inherited IRA for my dad. Earlier this year my dad passed away. While the financial institution admits to transferring my mother’s IRA into the wrong type of IRA for my dad, they are unwilling to correct this mistake with the IRS since my father is no longer alive. They have told me they will send me a letter explaining the issue. They told me that I can direct them to give me RMDs over my life using the single life table vs. over 5 years. They have also told me that their letter will service as “evidence” or backup if the IRS ever raises questions about the timing of these distributions. I would like the custodian to take responsibility for this mistake and correct this directly with the IRS or at a minimum let me transfer the assets from the Inherited IRA with my mother as original depositor into an Inherited IRA with my father as original depositor so I can use the single life table. What should my financial institution or I be doing to correct this error?