Q.Reviving An Unhealthy Lime Tree
I am in the military and just moved to Florida. I have a lime tree in my yard but it appears to be unhealthy. I don’t know what to do and am considering giving it a significant pruning at the end of summer. Most of the fruit are quite dry inside and don’t look like healthy limes. I have attached a couple photos. Can someone help me with where to start? Thank you.

Certified GKH Gardening Expert
I would start by testing the soil for deficiencies or pH imbalances.
https://www.gardeningknowhow.com/garden-how-to/soil-fertilizers/testing-soil.htm
https://www.gardeningknowhow.com/garden-how-to/soil-fertilizers/soil-ph-plants.htm
Once these parameters are in check, you can begin to correct what looks like a bacterial infection.
Treating with a fungicide according to the label will be necessary.
https://www.gardeningknowhow.com/garden-how-to/info/using-fungicides-in-garden.htm
Once you start using these, you can start to think about pruning.
https://www.gardeningknowhow.com/edible/fruits/lime/tips-for-pruning-lime-tree.htm
These articles will help you to care for your tree: