So you are thinking about filing for divorce and live in Orange County, Florida. Well, if you meet the requirements to file for divorce in Orange County, Florida (you should speak to a local attorney before you plan on filing) you would to the 3rd Floor of the Orange County Courthouse at 425 N. Orange Ave, Orlando, FL 32801.
The 3rd floor of the Orange County Courthouse houses the Family Law/ Domestic Relations division. There are several requirements that must be meet before a party files in Orange County but if you meet the necessary requirements you would open and file your case at the Orange County Courthouse. Also, you may want to check out the Ninth Judicial Circuit Court of Florida (http://www.ninthcircuit.org/index.asp)
If you find yourself where divorce is the only option you should speak to a local attorney and you may need to see the Orange County Courthouse.