Looks like Japanese Tree Lilac -
Syringa reticulata. I'll disagree about its conformation; that is NOT a well-formed tree grown by a reputable nursery professional. I suspect it is one of the dregs that nobody selected, and you got the leftover. Here are some well-formed individuals.
I request a good clear closeup of the trunk (or several pics) anywhere above the staking hoses. I'm not sold on that being lichens on the bark, and I'm hoping it is NOT a major scale infestation.
If it IS, that would also explain a lot of things...