Learn about how to obtain an extension for filing an inheritance tax return, filing fees, and where and when to file and pay the tax. Determine Date of Death values (DoD). 4.You will need an attorney to help you fill out a petition for a Grant of Letters which opens what is called "probate." These forms helpful when handling the estate of a deceased person. If you have questions, consult with an attorney. Yes, you need to open a bank account for Grandma's estate. All estate funds should be transferred into it and any other accounts closed. A Practice Note summarizing the procedure for ancillary probate in Pennsylvania. YES, an executor has rights to access the bank accounts. Banks require estates to have an EIN in order to open a bank account in the estate's name.