Much better to have it laid out in advance, even if they end up doing trades.
My brother and I, fortunately, are not competitive.
I think the only time these two will see eye-to-eye is when I’m gone. There was so much damage done by Igor, that ended up many times with a Mexican Stand-Off - he and his daughter against me and my son. Some things, even the adoptions didn’t heal.
So things need to be spelled out to make sure that things are divided equally. I will need the wisdom of Solomon for it, for sure.