I live in a community on a hill. The lots are all terraced. I want to build a wooden fence on my property line. Six ft. panel fences are all that my CC&Rs allow. If I build to the side of the rocks and in the soil I will lose almost 2' of property. How can I attach a fence to the boulders?

That depends on how big the boulders are.

One suggestion might be to possibly incorporate the boulders as being part of the fence rather than something to which the fence needs to be attached.

Just a thought.