Welcome to macProVideo forums!
There are probably a few good Logic Trainers in the LA area. But seeing as you are here at macProVideo...
Have you checked out the video tutorials we offer on Logic?
You can download and view the tutorials using the NED software:
If you are completely new to Logic, I'd recommend the Logic 101 tutorial.
There's also a free tutorial that you may find helpful:
I'm a Logic Trainer based in the UK, and I have to say you'll be hard pressed to find a Logic Trainer that will be able to teach you the breadth and depth that the Logic tutorials here cover.
Let me know if I can be of further help!