The wills and estates law definition encompasses the body of law that governs how property transfers when a person dies. This area of law determines who inherits property, how estates are administered, and what happens when someone dies with or without a valid will.
Understanding these fundamental concepts helps you make informed decisions about your own estate planning and prepares you for what happens when a loved one passes away.

What Wills and Estates Law Covers
Wills and estates law, sometimes called succession law or probate law, addresses several interconnected areas.
Testate succession refers to property transfer according to a valid will. When someone dies with a will, they are said to have died testate. The will directs who receives the deceased person’s property and names someone to manage the process.
Intestate succession covers property transfer when someone dies without a valid will. State law determines who inherits based on family relationships. The rules vary by state but generally prioritize spouses, children, parents, and then more distant relatives.
Probate is the court-supervised process of validating a will, paying debts, and distributing property. The term refers both to the process of proving a will is valid and to the overall administration of a deceased person’s estate.
Estate administration includes the practical work of gathering assets, paying creditors, filing taxes, and distributing property to beneficiaries.
The Purpose of a Will
According to the Legal Information Institute at Cornell Law School, a will is a legal document that states a testator’s wishes and instructions for managing and distributing their estate after death. The person who makes a will is called the testator (or testatrix for a woman, though this distinction is increasingly rare in modern usage).
A valid will must comply with state law requirements where the will is executed or where the testator lives at death. Most states require that a will be in writing, signed by the testator, and witnessed by two individuals who are not beneficiaries.
The key functions of a will include naming beneficiaries who will receive your property, appointing an executor (also called a personal representative) to administer the estate, naming guardians for minor children, creating testamentary trusts that come into existence at death, and expressing wishes about funeral arrangements.
A will only governs probate assets, those owned solely in your name at death without a beneficiary designation or survivorship provision. Assets like life insurance with named beneficiaries, retirement accounts, and property held in joint tenancy pass outside the will.
When Someone Dies Without a Will
Dying without a valid will is called dying intestate. In this situation, state intestacy laws determine who inherits the deceased person’s property. According to the North Carolina Judicial Branch and similar state resources, intestacy law generally distributes property in the same way most people with wills leave their property, to immediate family.
The typical intestacy order follows a pattern. If the deceased has a surviving spouse and children, the estate is divided between them according to formulas that vary by state. If there is a spouse but no children, the spouse may share with the deceased’s parents. If there are children but no spouse, the children inherit equally. If there are no spouse or children, parents inherit. If parents are deceased, siblings and their descendants inherit, and so on through more distant relatives.
Only blood relatives and legally adopted children can inherit under intestacy laws. Stepchildren, unmarried partners, close friends, and charities receive nothing unless named in a will.
Probate Explained
Probate serves several purposes in the legal system. It provides a court determination that a will is valid and represents the deceased person’s true intentions. It gives creditors notice and an opportunity to make claims against the estate. It provides an orderly process for distributing assets.
The probate process typically begins when someone files the will with the probate court and petitions for appointment as executor. The court reviews the will, determines its validity, and issues letters testamentary (for estates with a will) or letters of administration (for intestate estates). These letters authorize the executor or administrator to act on behalf of the estate.
Once appointed, the executor inventories estate assets, notifies creditors of the death and the deadline for filing claims, pays valid debts and estate expenses, files final income tax returns and any estate tax returns, and distributes remaining assets to beneficiaries according to the will or intestacy law.
The length and complexity of probate vary dramatically. Simple estates might complete the process in a few months. Contested estates or those with complex assets can take years.
Key Legal Terms in Wills and Estates Law
Understanding the terminology makes navigating estate matters easier.
Testator is the person who makes a will. Decedent is the person who died, regardless of whether they had a will.
Executor (if named in a will) or administrator (if appointed by the court for intestate estates) is the person responsible for managing the estate. The general term personal representative covers both.
Beneficiary is anyone who receives property from an estate, whether by will or intestacy.
Letters testamentary or letters of administration are court documents giving the executor or administrator authority to act on behalf of the estate.
Bequest traditionally refers to a gift of personal property in a will, while devise refers to a gift of real property. Modern usage often treats these terms as interchangeable.
Codicil is an amendment to an existing will. It must be executed with the same formalities as the original will.
Probate assets are those that pass through the probate process, subject to the will or intestacy laws. Non-probate assets pass outside probate through beneficiary designations, joint ownership, or trust provisions.
Non-Probate Transfers
Not all property goes through probate or is governed by your will. Understanding non-probate transfers is essential for comprehensive estate planning.
Joint tenancy with right of survivorship causes property to pass automatically to the surviving joint owner. This applies to real estate and financial accounts held in this manner.
Beneficiary designations on life insurance policies, retirement accounts, and payable-on-death bank accounts direct those assets to named individuals regardless of what a will says.
Revocable living trusts transfer property according to the trust document without probate involvement.
These non-probate mechanisms can simplify the transfer process but can also create problems if beneficiary designations conflict with a will or are not updated after life changes.
The Role of State Law
Wills and estates law is primarily state law. Each state has its own statutes governing will formalities, intestacy succession, probate procedures, and estate administration.
The Uniform Probate Code (UPC), drafted by the Uniform Law Commission, provides a model for states to adopt. According to the commission, eighteen states have adopted the UPC in full, including Alaska, Arizona, Colorado, Florida, Hawaii, Idaho, Maine, Michigan, Minnesota, Montana, Nebraska, New Mexico, North Dakota, South Carolina, South Dakota, and Utah. Even with the UPC as a model, significant variations exist in spousal inheritance rights, elective share provisions, and procedural requirements.
Planning Implications
Understanding wills and estates law helps you make better planning decisions.
If you die without a will, you accept whatever your state’s intestacy laws provide. This may not match your wishes, particularly if you want to benefit non-relatives, charities, or stepchildren.
A properly drafted will gives you control over who receives your property and who manages the process. Beyond a will, comprehensive estate planning often includes powers of attorney, living wills, and possibly trusts.
When to Seek Professional Help
While basic wills are relatively straightforward, certain situations call for professional assistance.
You should consult an estate planning attorney if you own real estate in multiple states, have a blended family with children from prior relationships, want to create trusts for minor children or beneficiaries with special needs, have business interests that require succession planning, have a potentially taxable estate, or face family situations that might lead to will contests.
An attorney can ensure your documents comply with state law, integrate properly with beneficiary designations and non-probate transfers, and accomplish your goals effectively.