My 91-Year-Old Mother Has Dementia and Banks Won’t Unlock Her $100,000 Stock Certificate. What Can I Do?

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The woman owns approximately $100,000 of Consolidated Edison stock held as a physical paper certificate by a stock-transfer agent, according to financial columnist Quentin Fottrell. Her son holds durable power of attorney and serves as the named executor of her will. The shares represent the only assets in her estate without designated beneficiaries, creating a potential probate bottleneck the family is desperately trying to avoid.

The Conversion Mandate and the Dreaded MSG

The stock-transfer agent informed the family that before any beneficiaries can be added to the holding, the paper certificate must first be converted into electronic, book-entry form, according to MarketWatch reporting. That conversion requires submitting a transfer request accompanied by a medallion signature guarantee, commonly known as an MSG.

Obtaining an MSG has proven nearly impossible for the family. Despite holding a valid power of attorney, the son reported that multiple traditional banks, brokerages where he maintains accounts, and an online MSG service have all declined to issue the certification, as detailed by MarketWatch.

Weighing Liability Against Retail Banking Policies

A medallion signature guarantee is a specialized certification used when transferring or selling securities such as stocks and bonds, according to MarketWatch explanations. The stamp verifies both the signer’s identity and their legal authority to complete a transaction. Crucially, it makes the issuing financial institution financially liable if the signature turns out to be fraudulent.

Because of that heavy financial liability, most commercial banks refuse to issue MSGs for individuals who do not already maintain accounts with assets on deposit at that specific institution, according to MarketWatch. Furthermore, using a power of attorney for a paper certificate that predates modern electronic transfers introduces layers of complexity that standard retail bank branches are often unequipped or unwilling to handle.

While some financial institutions do issue MSGs for transactions involving powers of attorney, their internal policies vary significantly, according to MarketWatch. Some companies outright refuse such requests, while others mandate that the principal—in this case, the 91-year-old mother—appear in person, though a subset of providers will accommodate homebound or incapacitated customers.

Escalating Past Customer Service Walls

Financial advice columnists suggest that families facing similar roadblocks should bypass general customer service desks and contact the transfer agent’s specialized escalations or transfer services department directly, according to MarketWatch.

In communications with transfer agents like the stock-transfer agent, families can inquire whether an MSG is genuinely the sole acceptable form of authentication, or if the firm will accept alternatives such as a notarized affidavit, a signature guarantee originating from a different program, or a court order, according to MarketWatch. Additionally, providing a medical letter that attests to the account holder’s health status can sometimes assist in navigating institutional requirements for incapacitated clients, as reported by MarketWatch.