Yes — our search found 11 records for Mark Castonguay in the Massachusetts unclaimed property database. Click the green Claim button above to start the free claim process.

Click the green Claim button next to any matching record above. You'll be taken to Massachusetts's official unclaimed property portal at https://findmassmoney.com/. You'll typically need a government-issued photo ID and proof of your address. Most claims are processed within 60–90 days. Claiming is always 100% free.

Common sources of unclaimed money in Massachusetts include: dormant bank accounts, uncashed checks, life insurance policy proceeds, security and utility deposits, stocks and dividends, refunds, pension distributions, and safe deposit box contents. Any of these can be turned over to the state after 3–5 years of inactivity.

Yes — unclaimed money is held by the state of the owner's last known address, so if Mark has ever lived or worked in another state, records may be held there too. Use the search bar above to check other states. You can also check federal databases at TreasuryDirect.gov for uncashed savings bonds.