I live in central Fl.
Unfortunately, your photos did not come through.
I am unable to assess the damage. In the meantime, this article will give you information on their care:
https://www.gardeningknowhow.com/ornamental/trees/elm/caring-for-drake-elm-trees.htm
What a species, eh?! It isn't knick-named the "Trash Tree" for nothing.
Getting rid of this tree is going to take persistence. Lots of persistence.
You will have to dig, cut, poison, and repeat until there are no reoccurring instances.
Here is an article that will more information on removing invasive trees:
One side of our elm trees turn brown... we planted 4 years ago.
That phrase is intended to help prevent the spread of leaf fungal diseases of elm trees as there are no effective treatments. When elm leaves fall, rake them up and dispose of them in the trash, never in the compost pile.
https://www.gardeningknowhow.com/ornamental/trees/elm/diseases-of-elm-trees.htm
After a storm blew over my Chinese elm, I cut it down to a stump. (diameter of stump is about 6 inches). 8 months later, the tree has come back and looks like a bush. Can I trim and reshape so it will become a tree or are these just limbs that will not support a tree?
The answer to your question is a guarded, yes. If the stump is still alive, if it hasn't decayed and if it has enough energy to send up shoots, or suckers that can absorb sunlight, it can grow. It won't grow back to look like the original tree, but you can start new trees from its suckers. If the tree was grafted, you may only get the rootstalk tree and not the desirable tree grafted on top.
Here's an article that will help: https://www.gardeningknowhow.com/ornamental/trees/tgen/planting-a-tree-shoot.htm
The leaves have a red spotted "measles", all over them. The center vein of each leaf is still somewhat green. The entire tree is affected.
It likely has a fungal infection. Here is more:
https://www.gardeningknowhow.com/ornamental/trees/elm/diseases-of-elm-trees.htm
If the spots are bumps, it could be leaf gall:
https://www.gardeningknowhow.com/plant-problems/environmental/treating-leaf-gall-on-plants.htm
We want to use slices of the trunk for wood project because it’s interior is very pretty.
I didn't see any research that said it loses color, but that it can be an unstable wood to work with and has a low resistance to decay while drying. If you peruse some of the woodworking sites online you can learn more.
Here's our article about Chinese Elm: https://www.gardeningknowhow.com/ornamental/trees/elm/lacebark-elm-information.htm
The tree is about 30 years old
It looks like summertime and the tree has brown leaves, which is a cause for concern. These articles should help:
https://www.gardeningknowhow.com/ornamental/trees/tgen/peeling-bark-on-trees.htm
https://www.gardeningknowhow.com/ornamental/trees/elm/diseases-of-elm-trees.htm
https://www.gardeningknowhow.com/ornamental/trees/elm/dutch-elm-disease.htm
https://www.gardeningknowhow.com/ornamental/trees/elm/elm-yellows-disease.htm
https://www.gardeningknowhow.com/ornamental/trees/elm/growing-elm-trees.htm