Competency/Will Challenges The primary objective of a will is to transfer property and/or money to beneficiaries. It’s not surprising, or uncommon, for family members or friends who expected to receive something, but didn’t, to challenge the will itself or the competency of the will’s creator. This section explains when and how wills can be challenged and provides information on how someone is deemed mentally competent or of ‘sound mind’ and whether spouses and children can be disinherited.