A marina slip agreement is the contract that governs everything about keeping your boat at a dock: the slip you occupy, the fees you pay, the insurance you carry, the rules you follow, and what the marina can do if you stop paying. The legal stakes are higher than most boaters expect. A marina that isn’t paid can place a federal maritime lien on your vessel and ask a court to arrest it, meaning the boat itself becomes the defendant and cannot leave the dock until the debt is resolved.
Before you sign, it helps to understand what kind of legal arrangement you’re entering, what the contract should spell out, and where the serious risks sit.
Lease or License: Why the Label Matters
The most consequential legal question about any slip agreement is whether it functions as a lease or a license. A lease gives you a possessory interest in a specific piece of property, similar to renting an apartment. A license is just permission to use the space and creates no property interest.
If your agreement is a lease, you generally have stronger protections against termination and may be entitled to formal eviction procedures. If it’s a license, the marina has broader authority to move your vessel, reassign your slip, or end the arrangement on shorter notice.
Most marinas deliberately draft their agreements as licenses. They do this by reserving the right to relocate vessels for safety or maintenance, prohibiting slip holders from treating the dock as personal space, and avoiding words like “tenant” or “lease” anywhere in the document. Courts don’t always honor the label, though. If the agreement gives you exclusive control over a specific slip for a fixed term with limited termination rights, a court may treat it as a lease regardless of what the paper calls itself.
Before signing, look at three things: whether the marina keeps the right to move your boat, whether you can personalize the dock space, and how easily either party can walk away.
When Bailment Adds Marina Liability
A separate concept called bailment applies when the marina takes physical custody of your boat. If you hand over your keys for winter storage, haul-out, or repairs, that transfer of control creates a bailment, and the marina then has a legal duty to exercise ordinary care in safeguarding the vessel. It can be held liable for theft or damage that happens on its watch. Keep your keys and maintain the boat yourself, and no bailment exists; the marina’s liability drops significantly. That is the line between a marina that merely rents you space and one that has taken responsibility for your property.
What the Agreement Should Spell Out
Vessel and Slip Identification
Every agreement should name the berth or slip assigned to your boat and identify the vessel by name, registration or documentation number, and Length Over All. LOA generally includes everything that sticks out: swim platforms, bow pulpits, and davits. The measurement matters because most marinas charge by the foot, and a boat that overhangs its slip creates safety and liability problems for neighbors.
Rates and Fees
Slip rental rates vary widely by region. Smaller Gulf Coast or inland facilities may charge under $10 per foot per month, while marinas in major coastal cities routinely exceed $40 or $50 per foot per month. A 35-foot sailboat could run anywhere from $350 to over $1,750 a month depending on location and amenities.
Beyond the base dockage fee, expect separate charges for metered shore power, water hookups, Wi-Fi, and pump-out services. Some marinas bundle utilities into the base rate; others bill them separately, which can add a meaningful amount to the monthly cost. If you plan to live aboard, most marinas charge a surcharge reflecting the added wear on restrooms, laundry, and electrical systems, and not every marina permits live-aboards at all. Confirm eligibility before signing.
Many facilities collect a security deposit at move-in, often equal to one or two months of slip fees, along with the first and sometimes last month’s rent. Whether that deposit is refundable, and under what conditions, should be spelled out in the agreement.
Term and Renewal
Slip agreements usually come in three formats: seasonal (covering a boating season, roughly April through October in northern climates), annual, and month-to-month. Seasonal and annual agreements often contain automatic renewal clauses that roll the contract forward unless one party gives written notice before a specified deadline. Miss that window and you may be locked into another full term. Month-to-month arrangements offer flexibility but less security, since the marina can typically end the agreement with 30 days’ notice. Calendar any opt-out deadlines well in advance.
Insurance You Have to Carry
No marina will let your boat into a slip without proof of insurance. The standard requirement is a Certificate of Insurance showing Protection and Indemnity coverage, the marine equivalent of liability insurance. P&I covers damage your vessel causes to the dock, neighboring boats, or people. Most facilities require minimum liability limits between $300,000 and $500,000, with higher limits for larger or faster vessels. Hull insurance, which covers physical damage to your own boat from fire, sinking, or collision, is also commonly required.
A growing number of marinas now require fuel spill and pollution liability coverage. Even a small spill during refueling can trigger expensive cleanup obligations the marina doesn’t want to absorb. If your standard policy doesn’t include pollution liability, you may need to add an endorsement or buy a separate policy before the marina will finalize your agreement.
Ownership is verified through state registration or, for documented vessels, a Coast Guard documentation number from the National Vessel Documentation Center. Keeping current registration and insurance documents on file with the office is an ongoing obligation, not a one-time task at sign-up.
Rules You Have to Follow
Most agreements incorporate a separate rules-and-regulations addendum. Noise restrictions are nearly universal, typically banning loud music, generator use, and engine work after evening hours. Fueling at the slip is usually prohibited because of fire and spill risk. Major repairs, sanding, and painting are limited to designated work areas to keep fiberglass dust, paint chips, and solvents out of the water and off neighboring boats. Violations can result in fines or termination, and most contracts give the marina discretion to decide what counts as a violation.
Federal law also matters here. Discharge of untreated sewage from vessels into navigable waters is prohibited, and under 33 U.S.C. § 1322 states can petition to establish no-discharge zones where even treated sewage cannot be released. Civil penalties can reach $5,000 per incident.1Office of the Law Revision Counsel. 33 USC 1322 – Marine Sanitation Devices Slip agreements reinforce these rules by requiring use of designated pump-out stations for blackwater and greywater. The contractual obligation sits alongside the federal one, so a single discharge can bring both government fines and eviction from the marina.
Guest policies are also contractual. Agreements typically hold slip holders responsible for the behavior of visitors, require you to meet them at the security gate, and limit overnight stays by non-slip holders, particularly in peak summer months. If you plan to have friends or family aboard regularly, check the guest policy before assuming your slip doubles as a vacation rental.
Subleasing and Commercial Use
Nearly all marina agreements prohibit subleasing your slip to another boater or using it for commercial purposes without explicit written permission. You cannot rent out your slip while you’re away for the season, and you cannot run a charter, fishing guide, or boat rental operation from your berth unless the marina has designated it for commercial use. Some facilities allow temporary subleases administered through the office, but the original slip holder usually remains financially responsible and must ensure the sublessee meets all insurance and vessel requirements. Violating a no-sublease clause is grounds for immediate termination at most facilities.
Storms and Who Pays for the Damage
In hurricane and storm-prone regions, slip agreements include specific clauses on severe weather. NOAA guidelines advise that marinas and boat owners should be well into preparation by the time a hurricane watch is issued, because handling a boat becomes unsafe once winds reach 25 knots.2National Oceanic and Atmospheric Administration (NOAA). Hurricane Preparedness Guidelines for Marinas Most agreements require you to file a hurricane preparedness plan at the start of each season, designate an alternate caretaker who can act if you’re unavailable, and acknowledge the marina’s right to board, move, or secure your vessel in an emergency.
The force majeure clause determines who bears the cost when a storm damages boats or dock infrastructure. Under maritime law, invoking force majeure requires more than pointing at a hurricane. The party claiming the defense must show reasonable precautions: properly secured mooring lines, inspected hardware, and consideration of relocation to a safer area where time permitted. Courts have rejected the defense where other vessels in the same marina stayed put while the claimant’s boat broke free, treating that as evidence of inadequate preparation. Most agreements also include a hold-harmless provision shielding the marina from liability for damage caused during good-faith emergency actions. The financial risk of storm damage falls primarily on the boat owner and their insurer.
How to Terminate Without Getting Stuck
How you exit depends on the type of term you signed. Month-to-month arrangements typically require written notice delivered before a specific day of the month, often the first or fifth, and that notice is usually effective only at the end of that calendar month. A notice delivered on January 3rd ends the agreement January 31st, not immediately. Seasonal and annual agreements may require 30 to 90 days’ written notice before the renewal date to avoid rolling into another term.
Pay attention to how notice must be delivered. Some marinas accept email, but only if the office confirms receipt. A cancellation letter tucked inside a rent check or mailed without confirmation may not count. If the agreement specifies delivery to a physical office, hand-deliver and get a dated receipt. Failing to terminate properly can leave you on the hook for an entire additional season or year of slip fees, even if your boat is long gone. The marina has no obligation to re-let the slip on your behalf.
Rate increases follow the same renewal logic. Annual and multi-year agreements sometimes include escalation clauses tied to the Consumer Price Index or allow the marina to adjust rates by a stated percentage each year. If the agreement is silent on rate increases, the marina generally cannot raise your rate mid-term but can increase it at renewal. Month-to-month agreements give the marina the most pricing flexibility.
What Happens If You Don’t Pay
Falling behind on slip fees triggers one of the more powerful collection tools in American law. Under 46 U.S.C. § 31342, anyone who provides necessaries to a vessel on the order of the owner has a maritime lien on that vessel.3Office of the Law Revision Counsel. 46 USC 31342 – Establishing Maritime Liens The statute defines necessaries to include repairs, supplies, towage, and the use of dry docks, and courts have consistently held that dockage and wharfage qualify.4Office of the Law Revision Counsel. 46 USC 31301 – Definitions
Unlike most debts, a maritime lien attaches to the vessel itself, not just the owner. The boat becomes the defendant. To enforce the lien, the marina can file a civil action in rem under Rule C of the Supplemental Rules for Admiralty and Maritime Claims, asking a federal court to issue a warrant for the vessel’s arrest.5Legal Information Institute. Rule C – In Rem Actions: Special Provisions Once arrested, the boat cannot leave the dock until the debt is satisfied or the court orders otherwise. The marina does not need to prove that credit was extended to the vessel, only that necessaries were provided on the owner’s order.3Office of the Law Revision Counsel. 46 USC 31342 – Establishing Maritime Liens Legal fees, accrued interest, and storage charges during the dispute pile on top of the original debt, often doubling or tripling what the owner initially owed.
When marinas don’t pursue the federal route, most states provide a separate possessory lien that lets the facility retain the vessel on-site and eventually sell it at auction to recover unpaid fees. Timelines for treating a vessel as abandoned vary by state but commonly fall in the range of 60 to 90 days of unpaid fees and no contact from the owner. The marina must typically provide written notice to the owner at their last known address and may need to publish notice in a local newspaper before a sale. Auction proceeds in excess of the debt go to the owner, but in practice many abandoned boats sell for less than what’s owed, and in some jurisdictions the owner remains liable for the shortfall.
If you’re struggling to pay, contact the marina before the situation escalates. A marina would almost always rather negotiate a payment plan than go through the expense of arresting or auctioning a vessel. Once the legal machinery starts moving, the costs multiply fast and the boat owner’s leverage disappears.