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What Makes a Will Legally Valid?

The Law Office of Blake P. Lipman July 9, 2026

Man preparing Last WillCreating a will is one of the most important things you can do to protect your family and your legacy. A properly prepared will gives you the opportunity to decide how your assets will be distributed, who will oversee your estate, and, in some cases, who will care for your minor children.

However, simply writing down your wishes does not automatically create a legally valid document. Michigan law establishes specific requirements that must be met before a will can be recognized by the probate court. Understanding those requirements now can help your loved ones avoid disputes and delays later. 

The Law Office of Blake P. Lipman helps individuals and families create estate plans that reflect their wishes while complying with Michigan law. For more than 20 years, Attorney Blake P. Lipman has provided compassionate legal guidance, taking the time to understand each client's goals and communicating directly throughout the process. From the firm's office in Farmington Hills, Michigan, Attorney Lipman serves clients throughout the Detroit Metropolitan Area, including Oakland County, Wayne County, and Macomb County.  

Legal Capacity Is the Starting Point

One of the first questions a probate court considers is whether the person creating the will had the legal capacity to do so. In Michigan, the individual making the will, known as the testator, must meet certain legal requirements for the document to be considered valid. 

Generally, the testator must be at least 18 years old and possess sufficient mental capacity to understand the nature of creating a will. This includes recognizing the extent of their property, understanding who would naturally inherit from them, and appreciating how the will distributes their assets. 

Mental capacity does not require perfect memory or flawless health. Instead, the court looks at whether the individual understood what they were doing when the will was signed. If questions later arise regarding capacity, medical records, witness testimony, and surrounding circumstances may become important evidence during probate proceedings. 

The Will Must Reflect Your Intent

A valid will must represent your genuine wishes rather than the desires of someone else. The courts expect the document to reflect your voluntary decisions regarding the distribution of your estate.

Problems sometimes arise when family members claim that an elderly or vulnerable individual was pressured into signing a will that benefits another person. Allegations of undue influence frequently appear when significant changes are made shortly before death or when someone occupies a position of trust over the person creating the will. 

Working with an attorney during the estate planning process can help establish that your decisions were made freely and without improper influence. Careful documentation and thoughtful preparation often reduce the likelihood of future disputes among beneficiaries. 

Proper Execution Requirements Matter

Even when a will accurately reflects your wishes, it must still satisfy Michigan's execution requirements. Failure to follow these legal formalities can create significant problems during probate. Following the required execution procedures helps strengthen the document and reduces the possibility of future litigation. 

The will generally must be in writing and signed by the testator or by another individual acting at the testator's direction and in their conscious presence. Michigan law also requires witnesses for most traditional wills. These witnesses observe the signing process and later may verify that the document was executed properly if questions arise. 

Many people mistakenly believe that informal handwritten documents or unsigned drafts automatically become valid simply because they express someone's intentions. While Michigan recognizes certain handwritten wills under limited circumstances, those situations involve additional legal considerations that may create uncertainty if challenged. 

Choosing the Right Personal Representative

A will typically names a personal representative who will administer the estate after death. This individual collects assets, pays valid debts, files necessary documents with the probate court, and distributes property according to the will. 

Selecting someone trustworthy, organized, and capable of handling financial responsibilities is an important part of the planning process. Many people choose a close family member, while others appoint a trusted friend or professional fiduciary.

The person you select should be willing to serve and understand the responsibilities involved. Discussing your decision beforehand may prevent unexpected complications when it comes time to administer your estate. 

Michigan Laws That Govern Valid Wills

Michigan's requirements for valid wills are primarily set forth in the Michigan Estates and Protected Individuals Code (EPIC). This statute establishes the legal standards governing who may create a will, how wills must be executed, and how probate courts interpret testamentary documents. 

Under Michigan law, a valid will generally must be signed by the testator and witnessed in accordance with statutory requirements. EPIC also addresses situations involving handwritten wills, revoked wills, amended wills, and disputes regarding validity. The statute provides procedures for probate courts to follow when determining whether a document satisfies Michigan's legal requirements. 

Because these laws affect how property passes after death, reviewing your estate planning documents periodically helps keep them consistent with current family circumstances and applicable legal requirements. 

Keeping Your Will Current

A will should reflect your present wishes rather than circumstances that no longer exist. Major life events often create a need to review and update estate planning documents.

Marriage, divorce, the birth of children or grandchildren, significant changes in financial circumstances, acquiring new property, or the death of a named beneficiary may all justify revisiting your will. Failing to update outdated provisions can create confusion or unintended results during estate administration. 

Regular reviews also provide an opportunity to evaluate whether your chosen personal representative remains appropriate and whether other estate planning tools, such as trusts or powers of attorney, should be incorporated into your overall plan. 

Common Mistakes That Can Create Problems

Many people attempt to prepare wills without legal guidance, believing the process is straightforward. Unfortunately, small mistakes can create substantial difficulties later. Taking the time to prepare a legally valid will that clearly expresses your intentions may reduce conflict among loved ones and simplify estate administration after your death. 

Unsigned documents, improperly witnessed wills, conflicting provisions, ambiguous language, and handwritten changes made after execution may all invite challenges during probate. Family disagreements frequently arise when documents leave room for differing interpretations or fail to address significant assets. 

Estate Planning Attorney in Detroit, Michigan

The Law Office of Blake P. Lipman understands that planning for the future involves personal decisions that deserve thoughtful legal guidance. For more than 20 years, Attorney Blake P. Lipman has worked directly with clients, providing compassionate service, personalized attention, and regular communication throughout the estate planning process.

From the Farmington Hills office, Attorney Lipman proudly serves clients throughout the Detroit Metropolitan Area, including Oakland, Wayne, and Macomb counties. If you are ready to prepare or update your will, contact the Law Office of Blake P. Lipman to schedule a consultation.