Which of the following estate planning documentswill, codicil, letter of last instructions, living willdo the following individuals/families need? Explain your rationale.

Kayla, a recent college graduate with only a few personal assets, all jointly owned with her parents.

Justin and Edee, a couple in their 30s with two young children. They already have a will that they made when they were first married 10 years agobefore they had their second child.

Mac, a widowed man living with a close personal friend to whom he would like to leave his personal assets upon death.