Voting Question: How long does it take to receive the money from a living trust after the person passes away?

My mother passed away in March and was named as a trustee with the bank holding the trust account. Since then my sister brother and I have been named by the probate court as the fiduciaries to her affairs. So I was wondering how the bank will handle the trust account my mom had this for many years and said the money would become available immediately upon her passing. She paid all the fees through the years so there is only a conveyance fee to be paid. The trust was in my fathers name and my mother and the bank were named as trustees but now that she passed away things have changed. So what does the bank do now to liquidate the trust and disperse the monies? Can the bank keep money and do whatever they want with it?