Buying a ship isn’t like buying a truck. It’s a multi-million-dollar move that demands clarity, full documentation, and trust. But not every seller is upfront. Some cut corners, omit key facts, or create pressure to close before the truth surfaces. Knowing the red flags can protect you from a disastrous deal.
Here are 7 signs the seller might be hiding something — and what to do about it:
1️⃣ Missing or Delayed Survey Reports 🚩
When a seller drags their feet on providing the latest condition survey, class status, or drydock documentation, that’s a warning sign. These reports reveal corrosion, overdue maintenance, expired equipment certifications, and possible detentions.
- Typical excuses include “We’re still gathering everything” or “The shipyard hasn’t finished it yet.”
- No matter how friendly the seller seems, if you can’t review the full survey history upfront, you shouldn’t move forward.
- Ask directly for the most recent Special Survey, any outstanding class notations, and drydock findings.
2️⃣ Refusal to Allow Independent Inspection 🚩
If the seller pushes back when you ask to bring your own surveyor, naval architect, or engineer on board, assume there’s something they don’t want seen.
- Sellers may say the ship is “not accessible” or claim it’s “too costly” to arrange.
- Sometimes they’ll insist their own inspection is enough. It’s not.
- Make it clear that third-party verification is non-negotiable. If they resist, walk away.
3️⃣ Vague or Incomplete Technical Specifications 🚩
A proper spec sheet should include key performance and technical data. If major elements like gross tonnage, engine hours, fuel consumption, onboard systems, or recent retrofits are missing, that’s a problem.
- Some sellers intentionally omit data like drydock dates or scrubber details, especially if the ship isn’t compliant with current emission or ballast regulations.
- Others might leave out details on power take-off (PTO) systems or hull coatings that impact fuel costs.
- Request a full spec sheet and match it with registry data, previous sale listings, and class records to verify accuracy.
4️⃣ Pressure to Skip the Sea Trial 🚩
If a seller encourages you to skip or rush the sea trial, that’s a serious red flag. The sea trial is your one chance to verify engine performance, maneuverability, vibration levels, and fuel consumption under load.
- Sellers may say the ship “just completed a successful trial” or that “everything was checked recently.”
- Others might offer a small discount in exchange for waiving it. That’s never a good trade.
- Always insist on a full sea trial with your own technical team onboard, even if it adds time or cost.
5️⃣ Unusually Fast Closing Timeline 🚩
When a seller is in a hurry to close — and avoids your normal due diligence steps — they could be trying to move a vessel before a major issue is discovered.
- Phrases like “We have another buyer lined up” or “We need to close this week” are pressure tactics.
- In some cases, the ship might be scheduled for detention, regulatory fines, or a canceled charter.
- A clean seller welcomes scrutiny. If the pace feels rushed, slow things down or walk away.
6️⃣ Inconsistent Registry or Flag Data 🚩
If the vessel’s IMO records, registry history, or flag state details don’t align with what the seller provides, something could be off — including legal ownership, compliance, or even the ship’s identity.
- Always cross-check against IHS Markit, Equasis, and the current flag state’s public database.
- Red flags include recent flag changes, inactive class status, or unknown previous owners.
- Discrepancies could point to liens, embargoes, or attempts to mask the vessel’s past incidents.
7️⃣ No Proof of Ownership or Encumbrance-Free Status 🚩
If the seller cannot immediately provide clean ownership documentation, that’s a dealbreaker. In some cases, the vessel may be under lien, pledged as collateral, or part of an unresolved legal dispute.
- Ask for a recent Certificate of Ownership and a written statement verifying the vessel is free of encumbrances.
- Watch out for vague language like “we’re working on the paperwork” or “our lawyer will confirm soon.”
- If the ownership trail is unclear or goes through shell companies, pause the process until everything is documented.
FYI: check out 2025 new ship buyers from Ship Universe
In the ship world, due diligence isn’t just a formality, it’s a shield against financial and legal disasters. A seller who hides documents, resists inspections, or pushes for speed is often doing so for a reason. Transparency isn’t optional. It’s a minimum standard.
Before signing anything, make sure every spec, survey, and certificate checks out independently. The ocean is full of opportunity, but also full of risk if you’re not looking closely.
