Powerplay New to PP, Questions

So I'm currently in Zachary Hudson space. I'm pretty much a trader, so I pledged to Torval after reading about some trading perks somewhere. It now says I'm hostile (I assume it's because I pledged to Empire in Fed space). Should I leave Torval, and are alternate powers with trading perks?

Also, will I be hunted by security in Fed space purely based on my pledge to the Empire?
Thanks
 
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