To me the first one looks like sweet gum. Are there any dried up pointy balls lying around?
Also, there was some advice about how far from the house to plant a tree posted by a professional landscape designer last year.... Ah! Found it! MY EMPHASIS. The rest about soil conditions and tree selection references may not apply to you, obviously.
About half way down in this thread: https://www.helpfulgardener.com/forum/viewtopic.php?t=9391
MaineDesigner wrote:10' from the house is awfully close for most trees, even small ones. I think if you were my client and you really wanted a tree in that location I'd be trying to steer you towards Viburnum prunifolium in a single trunk, tree form (normally it is a big, multi-trunked shrub but single trunk specimens usually aren't hard to find). This makes a really lovely small (15' tall by 8' to 12' wide) tree.
(click on the thumbnails on the left and they enlarge on the main screen - the initial photos when the page opens are just placeholders, not the Viburnum)
Given your sandy soils (I'm trusting the builder/contractor - often a mistake) I would really encourage you to plant an oak if you want big shade tree, but give it room. For most oaks (and large shade trees in general) I like the tree to be planted a minimum of 40' from the house and 50' - 70' from most other trees. Ideally, I'd love to see you plant Quercus macrocarpa or Quercus alba (personal favorites and well suited to your sandy soils) but these trees are difficult to move successfully in larger sizes.