Common mistakes in wills and how to avoid them
Common mistakes in wills and how to avoid them should be on your mind any time you sign or update your estate plan. Even small errors can cause big problems in Arizona, Minnesota, and Wisconsin. A will that looks fine on paper can fail in court, trigger family disputes, or send assets to people you never intended.
Not signing the will correctly
One of the most frequent mistakes is improper signing. A last will and testament must meet specific rules to be valid. Most states, including Arizona, Minnesota, and Wisconsin, require that you sign in front of at least two qualified witnesses, and that they also sign. If you skip a step, a judge may treat the will as invalid.
The American Bar Association’s guidance on making a will legally valid explains that witnesses should be adults, mentally competent, and not people who inherit under the will. Choosing the wrong witnesses, signing in the wrong order, or forgetting dates can all invite challenges later.
Forgetting to update after life changes
Another common mistake is treating your will as a one time project. Marriage, divorce, new children, a move to another state, or the death of someone named in the will all call for a review. If you do not update the document, gifts may go to an ex spouse, the wrong mix of children, or someone who has already passed away.
A good habit is to review your will every three to five years and after any major life event. During that review, make sure your personal representative, guardians, and backups still make sense, and that gifts still match your finances and relationships.
Leaving out a residuary clause
Many people focus on listing specific items and forget a residuary clause. That clause says what happens to everything not mentioned by name. Without it, assets that you acquire later or forget to list may pass under intestacy rules instead of your plan. A short paragraph that leaves “all the rest, residue, and remainder” of your estate to a person or trust closes that gap.
Using vague or confusing language
Vague terms create room for conflict. Saying “divide things fairly” or “take care of the kids” does not tell a court what to do. Relatives may disagree about what “fair” means or which items count as “things.” Clear wording, specific percentages, and accurate descriptions of property reduce the chance of arguments and lawsuits.
Relying on DIY forms without legal review
DIY templates and online kits often look simple. The risk is that they may not match Arizona, Minnesota, or Wisconsin law, or they may leave out crucial details such as backups, guardians, or tax language. They also do not review your full picture or warn you about conflicts between your will, your trust, and your beneficiary forms.
Ignoring beneficiary designations
Beneficiary designations on life insurance, retirement accounts, and some bank accounts usually override your will. As resources on beneficiaries explain, these assets go directly to the person named on the form. If those designations are old, an ex spouse or distant relative might receive a large account even though your will says otherwise.
To avoid that result, review every beneficiary form when you sign or update your will. Make sure the people named there match the plan in your will and any trusts.
How to avoid common will mistakes
Thoughtful planning goes a long way. You can lower your risk by following a simple checklist:
- Confirm that your signing ceremony follows state rules for witnesses and notarization.
- Include a clear residuary clause to catch everything not listed in detail.
- Use precise language for gifts and roles, and name backups for key positions.
- Review your will, powers of attorney, and health care directive at regular intervals.
- Align beneficiary designations with your written estate plan.
Most important, work with a lawyer who understands your state’s requirements and your family situation. That review often catches the small details that cause big problems later.
Get help avoiding mistakes in your will
If you worry that your will contains some of these common mistakes in wills and how to avoid them, now is the time to make corrections. A clear, valid document helps your family move forward with less stress when they are already grieving.
At Metropolitan Law Group, we review existing wills and design new plans for clients in Arizona, Minnesota, and Wisconsin. Our team looks for gaps, conflicts, and outdated terms, then helps you create a will that matches your real life. You can book a complimentary 15-minute Discovery Call with a knowledgeable staff member to talk through your concerns. Experienced staff, not attorneys, handle these calls so you can decide whether a full planning meeting is the right next step.
To schedule your Discovery Call, visit our contact page or call our national number at 866-902-6148. You can also reach our Arizona office at 480-409-8200 or our Minnesota and Wisconsin office at 612-524-9414. Careful planning today helps ensure your will works as intended and protects both your assets and the people you care about.


