Retirement tax questions

Thank you dmertz!  Wonderful information and so helpful.  I am a little overwhelmed with having various accounts now at several different financial institutions and want less to keep track of.  I am also getting a little confused on if I will have to keep filing taxes for my deceased family members because the some of the accounts are set up as "estate of-----------" and want to get things a little more simple for myself.  Do I still file taxes for estate accounts that kick out RMD each year?