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How to Search for Liens on a Boat

Maritime liens can follow a vessel from owner to owner. Here is how to find them before you close.

Published April 7, 2026by HullScore Research

Ask most first-time boat buyers what scares them about used boats, and they will say mechanical problems or hidden damage. Those are valid concerns. But the risk that experienced buyers worry about most is liens on a boat, specifically maritime liens that can follow a vessel from one owner to the next without any public notice.

How Maritime Liens Work

Under U.S. maritime law (also called admiralty law), certain debts create a lien against the vessel itself, not just the person who owes the money. This works very differently from how liens work on land.

When you owe money on a house, the lien is recorded at the county recorder's office and shows up on a title search. When a maritime lien arises, it can happen automatically, by operation of law, with no recording or filing required. The lien simply exists from the moment the debt is incurred.

Critical point: A maritime lien does not need to be recorded anywhere to be enforceable. It attaches to the vessel the moment the service is provided or the debt is incurred. A boat can have a clean state title and still carry thousands of dollars in enforceable liens.

Common sources of maritime liens

  • Repair and maintenance: A boatyard that performed engine work, hull repairs, or winterization can hold a lien for unpaid bills.
  • Marina and dockage fees: Unpaid slip fees and storage charges create liens against the vessel.
  • Fuel and supplies: Fuel docks and marine supply companies that extend credit can hold a lien for materials provided to the vessel.
  • Crew wages: This one mostly applies to commercial vessels, but unpaid crew wages create one of the highest-priority maritime liens.
  • Salvage: If someone salvaged the boat (towed it after a grounding, for example), they hold a salvage lien until compensated.
  • Preferred ship mortgages: The marine equivalent of a mortgage, these are recorded with the USCG and apply to documented vessels.

Why This Is Dangerous for Buyers

Here is the scenario that catches people: You buy a used boat from a private seller. The state title is clean. You register it in your name. Three months later, a boatyard files a lawsuit claiming the previous owner owed $8,000 in unpaid engine work. Under maritime law, their lien attaches to the boat, not the owner. The boat can be arrested (seized) by a federal marshal to satisfy the debt, and you risk losing the vessel entirely.

This is not theoretical. Maritime lien enforcement actions are filed in federal courts regularly. The In rem (against the vessel) arrest procedure allows a lien holder to have the U.S. Marshal seize the boat, regardless of who the current owner is.

How to Do a Boat Lien Search Before Buying

Because maritime liens do not require recording, no database can guarantee you have found every possible lien. But here are the places to check:

1. USCG National Vessel Documentation Center

For USCG-documented vessels (boats that carry a Certificate of Documentation instead of a state registration), the NVDC records preferred ship mortgages and ownership history. You can search for a vessel on the USCG NVDC website or order an Abstract of Title, which is the most thorough ownership and lien record available for documented vessels. An Abstract costs approximately $25 and provides the full chain of title and recorded encumbrances.

2. State titling agency

For state-titled boats (the majority of recreational vessels), check with the state DMV or wildlife agency that handles boat titles. Some states (like Florida and Texas) have searchable online databases. Others require an in-person or written request. The state title will show recorded liens from banks and finance companies, but it will not show unrecorded maritime liens from service providers.

3. Commercial maritime lien databases

Private database companies aggregate maritime lien records from marine service providers, boatyards, and other creditors who have voluntarily reported outstanding debts. These databases are not exhaustive (a creditor who has not reported the debt will not show up), but they catch many liens that do not appear on state titles.

HullScore's Title Report includes a maritime lien database search as part of its standard seven-database title check.

4. Federal court records (PACER)

If a maritime lien has progressed to a lawsuit, the case will be filed in federal district court under admiralty jurisdiction. You can search PACER (Public Access to Court Electronic Records) for the vessel name or HIN to see if any In rem actions have been filed. This catches liens that have already escalated to litigation but will not show liens that have not been sued on yet.

How to Protect Yourself

  1. Run a database search. Check all the sources listed above. Start with a HullScore Title Report for the database aggregation, then check the state title and USCG documentation if applicable.
  2. Ask the seller directly. In writing, ask if there are any outstanding debts owed to marinas, boatyards, mechanics, or fuel suppliers. Get the answer in the purchase agreement.
  3. Include a warranty of clear title in the contract. Your bill of sale should include a clause where the seller warrants that the vessel is free of all liens and encumbrances. This does not prevent a lien from existing, but it gives you legal recourse against the seller if one turns up.
  4. Use an escrow or closing agent. For higher-value purchases, consider using a marine documentation service or escrow company to handle the closing. They will run title searches and hold funds until the transfer is clean.
  5. Ask where the boat has been serviced. Call the marina and boatyard where the boat has been kept. Ask if the owner's account is current. Yards are often willing to confirm this informally.
Bottom line: Maritime liens are the hidden risk in used boat transactions. State titles show bank loans but not service provider liens. A database search, a seller warranty, and direct contact with the boat's marina and mechanic are the best combination of protections available to a private buyer.

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