Family conflict when there's a death

Some manner of family conflict is pretty close to inevitable when there is a death in the family.  When I see it happening I imagine the deceased person painfully watching,  saying "Get over it!  If you want me to rest in peace, quit your squabbling and come together as a family."

It's especially painful when the last parent dies and there's an estate to be settled.
Sometimes it heals after a while, other times it splits families forever.  It's not a good idea to say "It won't happen to us." Maybe you'll get lucky and it won't. But being prepared for it and how to deal with it is a better idea. Get a lawyer.  Get a funeral director. Make your wishes known.  Get it done.