Key West has long been a place where couples build full lives together without necessarily getting married. But Florida law does not recognize common-law marriage, and it gives unmarried partners almost no automatic legal rights to each other’s property or medical decisions. If you and your partner want to protect one another, you have to do it deliberately. Here is how.
The law treats you as legal strangers
This is the hard truth that catches many couples off guard. If one partner becomes incapacitated or dies, the other is not next of kin under Florida law. Without documents, your partner may have no say in your medical care and no right to inherit, while your assets pass to relatives under the intestacy rules. Marriage creates those rights automatically; for unmarried couples, paperwork is the only path.
Wills are essential, not optional
Because Florida intestacy never includes an unmarried partner, a will is the only way to leave property to each other. A valid Florida will (Florida Statutes §732.502 governs signing and witnesses) lets you name your partner as a beneficiary and as personal representative. The estate still passes through probate under the Florida Probate Code (Chapters 731-735), so coordinate carefully.
Power of attorney and health care surrogate
If your partner is in the hospital, do you want to be the one making decisions and getting information? A designated health care surrogate makes that possible, and a durable power of attorney (Florida Statutes, Chapter 709) lets you manage each other’s finances during incapacity. Without these, a partner can be shut out by family members, even after decades together.
How you own your home matters
For unmarried couples who own a Key West home together, titling is critical. Joint tenancy with right of survivorship lets the home pass directly to the surviving partner outside probate. A Lady Bird deed (an enhanced life estate deed recognized in Florida) is another tool that can let you keep control during life while passing the property automatically at death. The wrong deed can leave a surviving partner with nothing, so this should be reviewed by an attorney.
Watch the homestead rules
Florida’s homestead protection (Article X, Section 4) shields a primary residence but also imposes restrictions tied to spouses and heirs. For unmarried couples, homestead can interact unexpectedly with how you try to leave the home. Do not assume your will controls the house; confirm it with counsel.
Beneficiary designations close the gaps
Naming your partner on life insurance, retirement accounts, and payable-on-death bank accounts lets those assets transfer directly, outside probate and outside intestacy. Review and update these forms together.
A note on Florida taxes
Florida has no state estate or inheritance tax, so the focus for unmarried couples is securing rights and clean transfers, not state death taxes.
Talk to a Florida attorney
For unmarried couples, the default rules offer no protection at all, which makes a coordinated plan vital. Consult a licensed Florida estate planning attorney to put the right documents in place for your life together in Key West.
Have a question about your estate?
Talk it through with Russel Morgan — free 30-minute consult.
For more on our Florida practice, see our overview of estate planning in Palm Beach. Morgan Legal Group's affiliated New York office also handles .