And for heaven's sake, as the author says, don't put family members in-between other family member's money (that they think is "theirs") and the other family members. Disaster waiting to happen.
As sole executor of my mother's estate, I'm standing between my step-brothers and a large inheritance thanks to a QTIP trust set up by my step-father (hopefully mom will live to a ripe old age; she's late 70's now). Am I worried that my step-brothers will lawyer-up when it comes time to settle her estate? Only a little. Both my step-father's trust and my mother's trust contain a clause that automatically disinherits any beneficiary who challenges trust administration. Will this be enough to discourage conflict? Only time will tell.