How to create kinetic text scroll where lines pop forward using null object parenting in After Effec

I'm fairly new to AE. I'm trying to create a vertical text scroll animation in After Effects where lines scroll up and when a specific line reaches the center, it juts to the right. I want to control the scroll with a null and possibly use parenting - I'ma bit lost with it all.

Any advice on structure? Should I precomp all lines? Use a second null for juting out ? 

Please see reference attached. 

Thanks you!