What Lake Property Owners and Operators Owed the Person Who Was Hurt or Lost
A property owner or operator who controls a lake access area, a dock, a swimming area or a boat launch owes a duty of care to people who use it. How far that duty reaches depends on two things: the visitor's legal status and the law of the state where the drowning happened.
For a family, the first question is often why the person was there. Most states answer it by sorting visitors into categories. If your family member was a paying campground guest or a visitor at a public park beach, the law may treat them as an invitee: someone on the property for the owner's business purpose or as a member of the public invited in. If they were a social guest at a private lake house, there with permission for their own reasons, they may be a licensee. Someone with no permission at all is a trespasser. The duty owed is generally greatest toward invitees and narrowest toward trespassers, though each state sets its own rules, and some states treat children differently.
Reasonable care is the usual measure. In a lake setting, depending on the circumstances, it may include posting warnings of depth or known hazards, keeping docks and access structures in safe repair, providing or requiring life jackets when watercraft are rented, and placing fencing or barriers near hazardous drop-offs in areas where children often play. None of these is required everywhere, and none is automatic. Whether reasonable care called for any of them depends on the setting and on what the owner knew or should have known.
Negligent supervision is a separate legal theory. It can apply when a business or organization took on the job of watching swimmers or guests, such as a camp, a resort with a supervised swim area, or a group running a water activity, and then did not do that job with reasonable care.
State law governs all of this. Limitation periods, the deadlines for bringing a claim, differ from state to state, as do the specific duty owed and the rules on shared fault. Shared fault, in plain terms, is how a state's law handles a situation in which more than one person's conduct is said to have contributed to what happened, including the conduct of the person who was hurt. In open-water cases, families sometimes find that the other side points to the swimmer's or boater's own choices, and how much that matters depends on the state. The site's state pages, such as the ones on a Florida drowning claim or an Illinois drowning claim, set out how one state treats these questions.
Families are not expected to know which standard applied. Sorting out the visitor's status, how shared fault is handled, and what that means in their state is part of what a conversation with an attorney can help a family understand.