You will need an attorney to help you fill out a petition for a Grant of Letters which opens what is called "probate." Begin the probate process.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. • Personal Property: Bank accounts, cash, and personal items. These forms helpful when handling the estate of a deceased person. If you have questions, consult with an attorney. Simplify your search with the fastest growing CRE marketplace. Find the right Banks in Allegheny County to fit your needs. 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.