The Short Answer

Yes. In Pennsylvania, a sibling generally has no authority to access and spend money from a deceased parent’s solely-owned bank account until someone is formally appointed as the estate’s personal representative (executor/administrator) and receives letters.

Even if the money is being used for something that sounds responsible (like mortgage payments), unauthorized access can still create legal exposure and can be challenged by other heirs or interested parties.

What Pennsylvania Law Says

After death, control of a decedent’s property is supposed to flow through the estate administration process. Pennsylvania law treats the personal representative as the person who has the legal right to take possession of and administer estate assets, pay proper expenses, and preserve property while the estate is being settled.

The Statute

The primary law governing this issue is 20 Pa.C.S. § 3311.

This statute establishes that the personal representative has the right to take possession of and administer the decedent’s real and personal estate (with limited exceptions), and to make reasonable expenditures necessary to preserve estate property during administration.

Relatedly, Pennsylvania also recognizes that legal title to a decedent’s personal property (which includes many bank account interests) passes to the personal representative as of the date of death. See 20 Pa.C.S. § 301.

There are narrow situations where a bank may release limited funds to certain family members for funeral-related purposes, but that is not a general “permission slip” for a relative to keep using the account for ongoing bills like a mortgage. See 20 Pa.C.S. § 3101.

Why You Should Speak with an Attorney

Even when the goal is to prevent foreclosure, the legal risk is that your sibling may be using funds they do not have authority to control, and the estate may need a clean paper trail showing what was spent, why, and whether reimbursement is owed. Legal outcomes often depend on:

• Authority and account type: Whether the account was solely owned, joint with survivorship, payable-on-death (POD), or held in trust can completely change who had rights to the funds.
• Proof and tracing: If money was withdrawn or transferred, the estate may need records to trace transactions and determine whether they were proper estate expenses or an improper taking.
• Emergency administration issues: If there is a real need to pay the mortgage to preserve the property, the solution is usually getting the right person appointed (or seeking limited authority), not informal access to the account. Pennsylvania law provides an order of priority for who is entitled to letters of administration. See 20 Pa.C.S. § 3155.

If you suspect misuse, timing matters: once money is spent or moved, recovery can be harder, and family disputes can escalate quickly. For more background, you may also want to read How Do I Stop Someone From Using My Deceased Parent’s Bank and Credit Card Accounts in Pennsylvania? and What Do I Need to Freeze a Deceased Person’s Bank Account in Pennsylvania When Co-Heirs Won’t Cooperate?.

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Disclaimer: This article provides general information under Pennsylvania law and does not create an attorney-client relationship. Laws change frequently. For legal advice specific to your situation, please consult with a licensed attorney.