I can't say for sure, trees are not my strongest point, but it reminds me of a variety of dogwood I had planted at my last garden.

The leaf is similar as well as the shape of the overall plant.

Mine flowered in clusters of small, white flowers. It was a late bloomer, though, and would not have been flowering for me yet. I remember times I would put off pruning it for what seemed like forever into the season so as to let it flower first, never wanting to cut off the blooms. it was a super quick grower and I finally got it to a shape I liked, which it quickly outgrew!

It had been planted right before I moved in, and I gardened there for several years and grew to enjoy that shrub. I was never sure of the exact variety but think it was a Silky Dogwood, or something very similar.

Maybe look into Cornus bushes?

Im in Pa, too, BTW.