I wish I had a photo to post. Maybe get one in a day or two. The tree has compound leaves, but the leaflets have a common base, growing radially from that base. It has 7 leaflets, strongly toothed, not lobed. Bright yellow leaflets this time of year. It looks very healthy, and is growing on top of a bluff overlooking Lake Michigan (micro climate type area). It's next door to my stepson's house. Any suggestions on what to start looking for from that description?