I know you already ordered it but I’m not a fan of Tyty nursery. Would feel dishonest if I did not say that up front. That pear should do great in normal sandy Florida soil. @jeremymillrood grows pears in Florida and may be able to add some additional advice when he sees this. Sand pear covers a lot of ground but its likely a kieffer or similar species. Very few pears can take that hot summer sun but hood is one that would well @Richard grows a nice dwarf hood in California that produces regularly.
In the future if you’re planning to order any trees I recommend buying from Just Fruit and Exotics. They’re a reputable family owned nursery in Florida and they’ll have varieties that should work in your zone…having said that, the southern Florida climate is dramitically different that what we have up here in NE FL so you may have to do some experimenting.
Personally, I don’t think the soil will be as much of an issue as the climate, you can supplement the soil. Depending on your location that’s either 10B or 10A. I’ve got a Flordahome, Leconte and a Pineapple pear that are doing well. However, 3 years in the ground and they’ve only produced a few pears each, so it will probably take some time before you know if this tree will be successful. Best thing I can recommend is to get it in the ground and see what it does. \Not sure if the variety you’re planting is self-fertile or not, but I’d suggest if you have the room to plant at least one or two other trees.