I wish I had not had joint accounts with late AH, but I did and it was a hassle for years.
Finally salvaged some money (mine from damages payout) and put it away....then found he had opened his own account to put HIS retirement money in. Legally I was entitled to half his superannuation, but was so glad to get out with my brain intact that I just didn't bother going for it. He'd have made our kids listen to his spiel on me and what a #*&$#%%$ I was, so I decided it was not worth that. He drank and dined his way thru it all within a year anyway.