Good morning. This is a mimosa seedling (Albizia julibrissin). They are non-native trees that are invasive in this area. We do not recommend planting it. https://www.invasiveplantatlas.org/subject.html?sub=3004
Here is more information about invasive plants. https://extension.umd.edu/hgic/topics/invasive-plants
If you are looking for ideas for trees to plant, this is a good basic list. https://dnr.maryland.gov/forests/Pages/MarylandersPlantTrees/Recommended-Tree-List.aspx
In Washington, DC, Casey Trees is a great resource as well. https://caseytrees.org/tree-species/
I am extremely grateful for your response. Thanks so much!!!