I had an interesting case lately. The decedent had money in another jurisdiction that was not in their trust. However, it's in a different jurisdiction, with different laws, and it sounds like the bank account has some funky titling not normal in the United States. It simply wasn't clear what the banker wanted to clear title though. I should add this is a big money situation and time is of the essence. Initially I was told they wanted "letters" but there are many varieties of letters so which one did they want?
Getting "letters" means going to probate court. However, it does not mean that you are definitely doing a full probate. There are options and each one takes a different amount of time and costs are different as well. The types of letters are:
1) Letters Testamentary