A foundational estate plan is usually a small set of documents with different jobs, not one document that controls everything.
Estate planning is broader than writing a Will. A foundational plan commonly includes a Last Will and Testament, a financial power of attorney, and one or more health-care documents such as an advance directive, living will, or health-care power of attorney, depending on the state. A Will generally addresses property and appointments that operate at death. A financial power of attorney authorizes an agent to act with respect to financial matters during life according to the document and state law. Advance directives address medical decisions if the person cannot communicate their own wishes. Beneficiary designations and ownership arrangements can also affect how assets pass, even though they may not be separate estate-planning documents. The exact package and terminology vary by jurisdiction and by the person’s circumstances.
What documents are commonly part of a foundational estate plan, and what job does each document perform?
A foundational estate plan usually addresses three different periods: decisions while a person is alive and able to act, decisions if the person becomes unable to act, and transfer of property and responsibilities after death. No single document performs all three jobs.
A Will states instructions that generally become relevant at death. It can direct the distribution of probate property, nominate a personal representative or executor, and in many states can nominate a guardian for minor children. A Will generally does not control property that passes through a valid non-probate mechanism such as certain beneficiary designations or survivorship arrangements.
A financial power of attorney authorizes another person, often called an agent or attorney-in-fact, to act on the principal’s behalf with respect to financial or property matters covered by the document. A durable power of attorney is commonly designed to remain effective despite the principal’s later incapacity, subject to state law and the document’s terms.
Advance-care documents address medical decisions rather than inheritance. The National Institute on Aging identifies the living will and durable power of attorney for health care as two common forms of advance directive. A living will records treatment preferences for circumstances in which the person cannot communicate. A health-care power names a proxy or agent to make medical decisions if needed.
Some estate-planning packages also include a HIPAA authorization or other health-information release. Its purpose is different from naming a decision-maker. It can authorize specified people to receive protected health information, subject to federal rules and the language of the authorization.
Retirement accounts, life insurance, payable-on-death accounts, transfer-on-death registrations, and jointly owned property may pass through contractual or ownership mechanisms outside the Will. Reviewing those arrangements is part of understanding the broader estate plan even when the forms are maintained by a bank, insurer, custodian, or other institution rather than an estate-planning provider.
State terminology and document requirements vary. A document called an “advance directive” in one state may combine functions that another state separates into multiple forms. The powers granted under a financial power of attorney also depend on state law and document language.
Steward’s foundational package includes a state-specific Last Will and Testament, Advance Directive or Living Will, and Financial Power of Attorney, along with related documents used in the applicable state workflow. Steward does not treat those documents as a complete answer for every possible estate-planning situation. If your situation raises questions that require individualized legal judgment, you should consult a licensed attorney in your state.
Cornell Legal Information Institute, “Last Will and Testament”.
Cornell Legal Information Institute, “Durable Power of Attorney”.
National Institute on Aging, “Advance Care Planning: Advance Directives for Health Care”.
Consumer Financial Protection Bureau, “What is a power of attorney?”, reviewed August 28, 2026.
This Steward Brief is provided for general educational and informational purposes only. Steward is not a law firm and does not provide legal advice. This Brief does not create an attorney-client relationship and is not a substitute for advice from a licensed attorney. Laws, court interpretations, administrative rules, and document requirements vary by jurisdiction and may change over time. Any statement describing a legal rule should be read in the context of the cited authority and jurisdiction. For advice about your specific circumstances, consult a licensed attorney in your state.