Brick wall has long crack in it. Engineer, inspector or???

[Will F.]

Hi we have a building that I'm managing that has a long thin crack in it. It could just need some sort of patching. I hope it's not something structural or that in the worst case the wall collapses.

I was wondering if I should have an engineer, inspector or contractor look at it? Does anyone know who I should go to for this? I'm kind of confused

Anyone have recommendations for the LA area