Getting the $25K homestead exemption is only part of the benefit of having your residence designated as homestead property. The other benefits are - in no particular order:
(i) Your home will qualify for the "save our homes" tax cap on re-assessment. Basically, this means that the local property tax assessor is limited to raising the taxable value of your home by not more than 3% a year. Although this is not a big deal in the current real estate market, it will save you significant money once (if?) property values begin to climb again [remember...all markets are cyclical]. Also, if the Florida constitution is amended in January, you'll have to choose between the save our homes cap and the "super exemption." Given that you're a new home buyer, you might well do better w/ the super exemption. Note - there is no cap on re-assessment with the super exemption. Thus, I think the local assessor can raise your assessed value annually to account for appreciation.
(ii) Once your home is designated homestead, there is only a very limited class of creditors who can foreclose on it...without writing a law review article, those creditors are (a) your mortgagor; (b) the local government [for delinquent taxes]; (c) certain mechanic lien holders; (d) your ex-spouse in a marital dissolution proceeding; and (e) Uncle Sam (give unto Cesar!). There might be a few more creditors who are given preference, but I can't remember all of them. The listed ones are the biggies. This is HUGE. Even if you don't have creditors today, you might well end up getting sued at a late date (like for a car accident or some other negligent act). Judgment creditors are geneally not entited to foreclose on homestead.
(iii) This one kind of falls under no. (ii) above, but it deserves to be singled out. If you file for bankruptcy, your homestead is (generally) exempt from sale. Obviously, your mortgagor & the other creditors listed in (ii) above can reach the equity in bankruptcy. Also, under the new bankruptcy law, you must reside in your homestead for a certain period of time prior to filing for relief in order to benefit from the homestead protection. I think the waiting period is 2 years or thereabouts.
One final note - when I bought my home, I went in person to file the exemption. I brought a duplicate copy of the application with me and had the clerk initial & date it. I also got a copy of her business card. It was one of the smartest things I've ever done as the clerk never processed the application and I didn't know about it until I got my tax bill (i.e., after the filing deadline). Because I had the initialed copy of the application, I was able to demonstrate that I timely submitted my application and was eventually given the exemption.
Good luck & file that application!