A BPO and CMA are not the same thing, I've done thousands of both and they are not. I'm neutral here, not trying to get your business. If you are wanting to list your land or get an idea on it, have a local realtor do a CMA. BPOs are more generic, and if you order one (several companies let people order BPOs through their website, just google order a BPO), you don't know who will be completing the order, or what they will or will not be allowed to adjust for. Vacant lot BPOs are terrible because the forms the agent fills out allows for minimal adjusting, and sometimes the agent is required to give 90,120,180 and 180+ day values. In a CMA the agent can adjust for anything and everything that requires adjusting, and the value you get is current. Often you can get a CMA for free too, so that doesn't hurt. Good luck with the lot in Florida.