Fl resident passes can be purchased on the web, by phone, or in person at WDW. I'm not sure if Florida Disney Stores sell Florida resident passes.
If purchased on the web or by phone, the recipient will get vouchers, not actual passes. These vouchers must be turned in at Guest Services to be exchanged for actual tickets. When they are turned in for use, the recipient must provide proof of Florida residency in order to get the passes.
If you are not a Florida resident or do not have proof of residency, then you will be given the option of paying the cost difference between the Florida resident's pass and the cost of a regular MYW pass.