Wall St. Journal:  Natalie Choate, an estate-planning lawyer and retirement plan expert answers the following question:

My wife and I are retired and both are covered by my medical practice's “professional practice corporation” retirement plans. We are in the process of discarding our old wills and creating a living trust. We have one daughter and two grandchildren and would appreciate knowing how to designate the beneficiary forms so that when one of us dies, the maximum benefits go to the living spouse first, then get stretched on for the daughter and grandchildren.