There seems to be some confusion here.
I'm thinking that what you want is legalized gay marriage, for Florida.
That's not what the Edie Windsor case was about.
She and her same sex spouse were already legally married, when her spouse died and left her estate to her wife.
With straight marriages, if one spouse dies, the estate automatically goes to the surviving partner, and that partner has to pay NO Federal taxes on that inheritance.
Under DOMA, Edie was liable for the Federal taxes on the inheritance, because DOMA only recognized marriages between men and women.
Edie sued, and won.
The Supreme Court ruled that legally married gay people were entitled to the same Federal benefits as legally married straight people.
The United States Supreme Court did not legalize gay marriage, anywhere.
With California's Proposition 8 case, they simply ruled that the people who brought the case before the Supreme Court, were not legally allowed to bring the case before them. So, the lower court ruling (which found Proposition 8 to be unconstitutional), became the law, and Proposition 8 was overturned, and gay marriage was once again legal in California.
If you're looking to take a case all the way to the Supreme Court, claiming that it's unfair that gay marriage is not legal in Florida, your chances of winning are close to zero. Keep in mind that, in the two recent gay rights victories in the Supreme Court, the Court did not legalize gay marriage, anywhere.