Actually, if you own a house in Florida, during the time that you are staying in that house, you are a resident of the Florida. If a person maintains a home in 2 States and resides in both States for certain periods of the year, he or she may,
during the period of time the person actually resides in a particular State, purchase a handgun in that State. However, simply owning property in another State does not qualify the person to purchase a handgun in that State.
27 CFR 478.11
The following are examples
that illustrate this definition:
Example 1. A maintains a home in State X.
A travels to State Y on a hunting, fishing,
business, or other type of trip. A does not become
a resident of State Y by reason of such
trip.
Example 2. A is a U.S. citizen and maintains
a home in State X and a home in State
Y. A resides in State X except for weekends
or the summer months of the year and in
State Y for the weekends or the summer
months of the year. During the time that A
actually resides in State X, A is a resident of
State X, and during the time that A actually
resides in State Y, A is a resident of State Y.